Publications

CATEGORY A - peer reviewed journals

Hainschwang, T. (2025), A Melee-sized Colourless HPHT Synthetic Diamond with Dislocation-like Blue Fluorescence. The Journal of Gemmology, Vol. 39, No. 5, pp. 443-445.

Hainschwang, T. (2025), Trapiche Grossular from China. The Journal of Gemmology, Vol. 39, No. 5, pp. 418-421.

Hainschwang T., Notari F., Hainschwang G., Shara M. (2024) Twins Separated at Birth: Identifying Pairs of Polished Diamonds with Irradiation-Related Color from the Same Rough by Fingerprinting Using Imaging and Spectroscopy. Diamond at Related Materials, Vol. 145, pp. 111066-111078.

Hainschwang T., Fritsch E., Gaillou E., Shen A. (2024), Analysing the Luminescence of Gems. Elements, Vol. 20, pp. 312-317.

Hainschwang, T. and Hainschwang G. (2024), Large Aquamarine Overgrown by Synthetic Emerald. The Journal of Gemmology, Vol. 39, No. 3, pp. 199-201.

Hainschwang, T. and Hainschwang G. (2023), Dyed Chatoyant Quartz Misrepresented as Cats-eye Chrysoberyl in an Antique Jewel. The Journal of Gemmology, Vol. 38, No. 8, pp. 754-756.

Shiryaev A.A., Chesnokov Y., Vasiliev A.L., Hainschwang T. (2023), Exsolution of oxygen impurity from diamond lattice and formation of pressurized CO2-I precipitates. Carbon Trends, Vol. 11, pp. 100270.

Barannik E.P., Shiryaev A.A., Hainschwang T. (2021), Shift of CO2-I absorption bands in diamond: a pressure or compositional effect? A FTIR mapping study. Diamond and Related Materials, Vol. 113, pp. 108280.

Hainschwang T. (2020), CVD Synthetic Diamonds Identified in a Parcel of Light Brown Melee. The Journal of Gemmology, Vol. 37, No. 1, pp. 16-18.

Hainschwang T., Notari F., Pamies G. (2020), The origin of color of 1330 nm center diamonds. Diamond and Related Materials, Vol. 110, pp. 108151.

Hainschwang T., Notari F., Pamies G. (2020). A defect study and classification of brown diamonds with deformation-related color. Minerals, Vol. 10, pp. 903.

Hainschwang T., Notari F., Pamies G. (2020). A Defect Study and Classification of Brown Diamonds with Non-Deformation-Related Color. Minerals, Vol. 10, pp. 914.

Notari F., Fritsch E., Caplan C., Hainschwang T., (2018), “Boehmite Needles” in Corundum Are Rose Channels, Gems & Gemology, Vol. 54, No. 3, p 257.

Cassette P., Notari F., Lépy M.-C., Caplan C., Pierre S., Hainschwang T., Fritsch E. (2017) Residual radioactivity of treated green diamonds. Applied Radiation and Isotopes, Vol. 126, pp. 66 - 72.

Hainschwang T. (2015) Gemstone analysis by spectroscopy. Encyclopaedia of Spectroscopy and Spectrometry, 3^rd Edition, Vol. 2, pp. 18 - 24.

Hainschwang T., Fritsch E., Notari F., Rondeau B., Katrusha A. (2013) The origin of color in natural C center bearing diamonds. Diamond and Related Materials, Vol. 39, pp. 27 - 40.

Nasdala L., Grambole D., Wildner M., Gigler A.M., Hainschwang T., Zaitsev A.M., Harris J.W., Milledge J., Schulze D.J., Hofmeister W., Balmer W.A. (2013) Radio-colouration of diamond: a spectroscopic study. Contributions to Mineralogy and Petrology, Vol. 165, N°5, pp. 843 - 861.

Hainschwang T., Karampelas S., Fritsch E., Notari F. (2013) Luminescence spectroscopy and microscopy applied to study gem materials: a case study of C centre containing diamonds. Mineralogy and Petrology: Luminescence special issue, Vol. 107, N°3, pp. 393 - 413.

Hainschwang T., Fritsch E., Massi L., Rondeau B., Notari F. (2012) The C center isolated nitrogen-related infrared absorption at 2688 cm^-1: perfect harmony in diamond. Journal of Applied Spectroscopy, Vol. 79, No. 5, pp. 749 - 754.

Hainschwang T., Fritsch E., Notari F., Rondeau B. (2012) A new defect center in type Ib diamond inducing one phonon infrared absorption: The Y center. Diamond and Related Materials, Vol. 21, pp. 120 - 126.

Fritsch E., Rondeau B., Hainschwang T., Karampelas S. (2012) Chapter 13: Raman spectroscopy applied to Gemology. In EMU Notes in Mineralogy, Vol. 12, pp. 453 - 488.

Karampelas S., Fritsch E., Gauthier J.-P., Hainschwang T. (2011) UV-Vis-NIR Reflectance Spectroscopy of Natural-Color Saltwater Cultured Pearls from Pinctada Margaritifera. Gems & Gemology, Vol 47, No. 1, pp. 31 - 35.

Fritsch E., Massuyeau F., Rondeau B., Segura O., Hainschwang T. (2011) Advancing the understanding of luminescence in gem materials. Gems & Gemology, Vol 47, No. 2, pp. 123.

Hainschwang T. (2011) “Cat’s-eye pearls”: Unusual non-nacreous calcitic pearl imitations. Gems & Gemology, Vol. 47, No. 4, pp. 330 - 332. 

Hainschwang T. (2011) A skillfully crafted non-nacreous pearl imitation. Gems & Gemology, Vol. 47, No. 1, pp. 70 - 71. 

Shiryaev A.A, Wiedenbeck M., Hainschwang T. (2010) Oxygen in bulk monocrystalline diamonds and its correlations with nitrogen. Journal of Physics: Condensed Matter Vol. 22, No. 4.

Karampelas S., Hainschwang T. (2010) Natural pearls from the Pectenidae family: Review and origin of colour. Gems & Gemology Vol 46, No. 2, pp. 149 - 150.

Hainschwang T., Notari F., Massi L., Armbruster T., Rondeau B., Nagashima M. (2010) Hibonite: A New Gem Material. Gems & Gemology Vol 46, No. 2, pp. 135 - 138.

Fritsch E., Notari F., Grobon Caplan C., Hainschwang T. (2010) Letter to the Editor: More on the fluorescence cage. Gems & Gemology, Vol 45, No. 4, pp. 235.

Nagashaima M., Armbruster T., Hainschwang T. (2010). A temperature-dependent structure study of gem-quality hibonite from Myanmar. Mineralogical Magazine, Vol. 74, No. 5, pp. 871-885.

Hainschwang T., Respinger A., Notari F., Hartmann H. J., Günthard C. (2009) A comparison of diamonds irradiated by high fluence neutrons or electrons, before and after annealing. Diamond and Related Materials, Vol. 18, No. 10, pp. 1223 - 1234.

Van der Bogert C.H., Smith C.P., Hainschwang T., McClure S. (2009) Gray-to-Grayish Blue and Gray-to-Grayish Violet Hydrogen-Rich Diamonds from the Argyle Mine, Australia. Gems & Gemology., Vol. 45, No. 1, pp. 20 - 37.

Hainschwang T., Respinger A., Notari F., Hartmann H. J., Günthard C. (2009). A comparison of diamonds irradiated by high fluence neutrons or electrons, before and after annealing. Diamond and Related Materials, Vol. 18, No. 10, pp. 1223 - 1234.

Hainschwang T. (2009) High-RI barium-zirconium glass imitation of peridot and other gems. Gems & Gemology, Vol. 45, No. 4.

Hainschwang T., Hochstrasser T., Bürgin T. (2009) A most unusual blister pearl. Gems & Gemology, Vol. 45, No. 4. 

Hainschwang T. (2009) Dyed sillimante used as emerald imitation. Gems & Gemology, Vol. 45, No. 4.

Hainschwang T. (2009) Dyed sillimante used as emerald imitation. Gems & Gemology eBrief, November 4th, Volume 1, No. 2.

Hainschwang T. (2008) Synthetic Citrine Quartz with Abundant Nail-Head Spicules. Gems & Gemology, Vol. 44, No. 4, pp. 375 – 376.

Hainschwang T., Notari F., Fritsch E., Massi L., Rondeau B., Breeding M., Vollstaedt H. (2008) HPHT treatment of CO₂ containing and CO ₂ – related brown diamonds. Diamond and Related Materials, Volume 17, No. 3, March 2008, pp. 340 - 351.

Hainschwang T. (2007) An unusual type of phenomenal quartz. Gems & Gemology, Vol. 43, No. 3, pp. 261 - 262.

Fritsch E., Hainschwang T., Massi L., Rondeau B. (2007) Hydrogen-related optical centers in natural diamond: an update. New Diamond and Frontier Carbon Technology, Vol. 17, No. 2, pp. 63 - 89.

Hainschwang T., Notari F., Anckar B. (2007) Trapiche Tourmaline from Zambia. Gems&Gemology, Vol. 43, No. 1, pp. 36 - 46.

Fritsch E., Rondeau B., Hainschwang T., Quellier Marie-Hélène (2007) A contribution to the understanding of pink color in diamond: the unique, historical „Grand Condé“. Diamond and Related Materials, Vol. 16, Issue 8, pp. 1471 - 1474.

Hainschwang T. (2006) A large phenomenal fire opal with possible uranium-related luminescence. Gems & Gemology, Vol. 42, No. 4, p. 27.

Grobon Caplan C., Hainschwang T. (2006) Massive haüyne-sodalite from Myanmar. Gems & Gemology, Vol. 42, No. 1, pp. 64 - 65.

Hainschwang T. (2006) A convincing moonstone imitation. Gems&Gemology, Vol. 42, No. 1, p. 76.

Hainschwang T., Fritsch E., Massi L., Breeding C.M., Rondeau B. (2006) Natural “CO₂-rich” colored diamonds. Gems & Gemology, Vol.42, No. 3, p. 97.

Massi L., Fritsch E., Rossman G., Hainschwang T., Jobic S., Dessapt R. (2006) Chameleon diamonds: a proposed model to explain thermochromic and photochromic behaviors. Gems & Gemology, Vol. 42, No. 3, pp. 101 - 102. 

Fritsch E., Massi L., Rossman G.R., Hainschwang T., Jobic S., Dessapt R. (2006) Thermochromic and photochromic behaviour of „chameleon“ diamonds. Diamond and Related Materials, Vol. 16, No. 2, pp. 401 – 408.

Hainschwang T., Notari F. (2006) The Cause of Iridescence in “Rainbow" Andradite from Nara, Japan.Gems & Gemology, Vol. 42, No 4, pp. 248 - 258.

Hainschwang T., Leggio L. (2006) The Characterization of Tortoise Shell and its Imitations. Gems & Gemology,Vol. 42, No. 1, pp. 36 – 52.

Hainschwang T., Notari F., Fritsch E., Massi L. (2006) Natural, untreated diamonds showing the A, B and C infrared absorptions („ABC diamonds”), and the H2 absorption. Diamond and Related Materials, Vol. 15, No. 10, pp. 1555 - 1564.

Massi L., Fritsch E., Collins A.T., Hainschwang T., Notari F., (2005) The "amber centres" and their relation to the brown color in diamond. Diamond and Related Materials, Vol. 14, pp. 1623-1629.

Hainschwang T., Simic D., Fritsch E., Deljanin B., Woodring S., DelRe N. (2005) A Gemological Study of a Collection of Chameleon Diamonds. Gems & Gemology, Vol. 41, No. 1, pp. 20 - 34.

Hainschwang T., Notari F. (2005) A large greenish yellow grossular from Africa. Gems & Gemology, Vol. 41, No. 4, pp. 352 - 353.

Katrusha A. N., Ivakhnenko S. A., Zanevsky O. A., Hainschwang T. (2004) The use of thermobaric treatment to manipulate the defect-and-impurity state of natural diamond single crystals. Journal of Superhard Materials, No. 3, pp. 47 - 54 [in Russian].

Hainschwang T., Notari F. (2004) An untreated type Ib diamond exhibiting green transmission luminescence and H2 absorption. Gems & Gemology, Vol. 40, No. 3, pp. 252 - 254.

Hainschwang T., Notari F. (2004) A natural Diamond with very high nickel content. Gems & Gemology, Vol. 40, No. 4, pp. 334 - 336.

Hainschwang T. (2004) A diamond exhibiting a spectacular phantom. Gems & Gemology, Vol. 40, No. 1, pp. 76 - 78.

Schmetzer K., Hainschwang T., Kiefert L. & Bernhardt H.-J. (2002) New Chromium- and Vanadium-Bearing Garnets from Tranoroa, Madagascar. Gems & Gemology, Vol. 38, No. 2, pp. 148 - 155.

Schmetzer K., Hainschwang T., Kiefert L. & Bernhardt H.-J. (2001) Pink to Pinkish Orange Malaya Garnets from Bekily, Madagascar. Gems & Gemology, Vol. 37, No. 4, pp. 296 - 308.

OTHER JOURNALS/BOOKS/DIPLOMA WORKS

Hainschwang T. (2025) The Beauty of Diamond Fluorescence. 119 p.

Hainschwang T. (2025) The Challenging World of testing Melee-Sized Yellow to Orange Diamonds. The Gemguide, Vol. 44, issue 3, pp. .

Hainschwang T. and Notari F. (2022), Les substances de remplissage des émeraudes.  In “Emeraudes, tout un monde”, Gaston Giuliani - Editor, pp. 295-302. 

Notari F., Caplan C., Hainschwang T. and Nacht C. (2022), L’analyse gemmologique de l’émeraude.  In “Emeraudes, tout un monde”, Gaston Giuliani - Editor, pp. 273-282.

Hainschwang T. (2021) Testing untreated and treated natural diamonds as well as synthetic diamonds by spectroscopy and fluorescence imaging. In “Diamonds, natural, treated & laboratory-grown”, Branko Deljanin - Editor, pp. 138-173.

Notari F., Hainschwang T., Caplan C., Ho K. (2019). The heat treatment of corundum at moderate temperature. InColor, Vol. 42, pp. 14-23.

Hainschwang T. (2018) The sapphires of Mogok, in “Mogok The Valley of Gemstones”, K. Ho ex. Editor, Glénat, Paris. pp 120-133.

Hainschwang T. (2017) Die Analyse von kleinen und wirklich kleinen Edelsteinen. Gold’Or No. 8/17.

Hainschwang T. (2017) An overview of the properties and detection methods of synthetic diamonds currently in the market. Rivista Italiana di Gemmologia No.1, pp. 25 - 31.

Hainschwang T. (2017) Die Fluoreszenz von Farbedelsteinen. Gold’Or No. 3/17.

Hainschwang T. (2016) Die fantastische Welt der Farbdiamanten: über die Farbursachen und Laboranalyse der seltensten aller Diamanten. Herzog Loibner Catalogue September, pp. 14 - 18.

Hainschwang T., Notari F. (2016) Uncovering Mines and the Beauty of the Mogok Region in Myanmar. InColor, Summer, pp. 32 - 43.

Hainschwang T. (2016) Eine Reise zu den Steinen in Mogok. Gold’Or No. 9/16.

Hainschwang T., Notari F. (2016) Die Herausforderung des effizienten und präzisen Screenings von Melee Diamanten. Teil 2.: „Farbige “ Melee Diamanten. Gold’Or No. 7/16.

Hainschwang T., Notari F. (2016) Die Herausforderung des effizienten und präzisen Screenings von Melee Diamanten. Teil 1.: „Farblose (D-Z)“ Melee Diamanten. Gold’Or No. 5/16.

Hainschwang T., Notari F. (2015) Der erste farblose CVD synthetische Diamant entdeckt in einem Lot natürlicher Melee Diamanten. Gold’Or No. 5/15. 

Hainschwang T. and Notari F. (2015), Standards and protocols for emerald analysis in gem testing laboratories. In InColor, special issue from the 1st World Emerald Symposium, December, pp. 106-116).

Hainschwang T., Notari F., Caplan C. (2015) The Aurora Collection: An Excursion into the World of Fancy Color Diamonds. InColor, No. 29, pp. 30 - 35.

Hainschwang T., Notari F., Caplan C. (2015) Die Aurora Collection: Die Analyse einer wirklich aussergewöhnlichen Farbdiamantsammlung. Gold’Or No. 8/15.

Hainschwang T., Notari F. (2015) The First Undisclosed Colourless CVD Synthetic Diamond Discovered in a Parcel of Natural Melee-Sized Diamonds. Journal of Gemmology, Vol. 34, No. 6, pp. 518 - 522.

Hainschwang T., Notari F. (2015) A Barium (Ba) Glass Filled Ruby. Journal of Gemmology, Vol. 34, No. 7, pp.

Hainschwang T. (2015) Ein kontroverses Thema in der Edelsteinanalyse: Die Bestimmung des Ursprungslandes für Farbsteine. Gold’Or No. 3/15.

Hainschwang T. (2015) Zwei aussergewöhnliche Diamanten. Gold’Or No. 1/15.

Fritsch E., Megaw P. K., Spano T. L., Chauviré B., Rondeau B., Gray M., Hainschwang T., Renfro N. (2015). Green-Luminescing Hyalite Opal from Zacatecas, Mexico. Journal of Gemmology, Vol. 34, No. 6, pp. 490 - 508.

Caplan C., Hainschwang T., Notari F. (2015) New Large Black Synthetic Moissanite as a Black Diamond Imitation. The Journal of Gemmology, Vol. 34, No. 5, pp. 399 - 401.

Hainschwang T. (2014) First CVD Synthetic Diamond Discovered in a Parcel of Natural Melee-Sized Diamonds. Journal of Gemmology, Vol. 34, No. 4, pp. 300 - 302.

Hainschwang T. (2014) Typ Ib Diamanten, Teil 3 – Die Behandlungen. Gold’Or No. 9/14.

Hainschwang T. (2014) Diamants de type Ib: Relations entre les propriétés physiques et gemmologiques des diamants contenant de l’azote isolé, PhD thesis, University of Nantes, France, May 30^th, 407 p.

Hainschwang, T., Notari, F., Vadaszi, E. (2014) The Rhodesian Star: An Exceptional Asteriated Diamond. Journal of Gemmology, Vol. 34, No. 4, pp. 306 - 315.

Hainschwang T. (2014) Typ Ib Diamanten, Teil 2 - Defekte, Defekte und noch mehr Defekte. Gold’Or No. 7/14.

Schmetzer K., Hyrsl J., Bernhardt H.-J., Hainschwang, T. (2014) Purple to Reddish Purple Chrysoberyl from Brazil. Journal of Gemmology, Vol. 34, No. 1, pp. 32 - 40.

Notari F., Hainschwang T. (2014) Issues with Treated and Natural Green to Greenish Blue Diamonds. The Gemguide.

Hainschwang T. (2014) Typ Ib Diamanten, Teil 1 - Mehr als nur „Canary Yellow“. Gold’Or No. 5/14.

Hainschwang T., Notari F. (2014) Realität, Mythos und Kuriositäten rund um CVD synthetische Diamanten. Gold’Or No. 3/14.

Hainschwang T., Notari F., Fritsch E., Karampelas S. (2013) Luminescence Techniques and Their Importance in Gem Testing. The Gemguide.

Hainschwang T., Notari F. (2013) Mehr Maxixe-Typ Berylle mit instabiler Farbe im Markt / Plus de béryl bleu instable „type Maxixe“ sur le marché“. Gold’Or No. 9/13.

Schmetzer K., Bernhardt H.-J., Balmer W.A., Hainschwang T. (2013) Synthetic alexandrites grown by the horizontally oriented crystallization (HOC) technique. Journal of Gemmology, Vol. 33, No. 5-6, pp. 113 - 129.

Schmetzer K., Krzemnicki M.S., Hainschwang T., Bernhardt H.-J. (2013) Natural and synthetic vanadium-bearing chrysoberyl. Journal of Gemmology, Vol. 33, No. 7-8, pp. 223 - 238.

Schmetzer K., Bernhardt H.-J., Hainschwang T. (2013) Titanium-bearing synthetic alexandrite and chrysoberyl. Journal of Gemmology, Vol. 33, No. 5-6, pp. 137 - 148.

Hainschwang T. (2013) Typ Ib Diamant: farbig, aussergewöhnlich und selten. Gold’Or 3/13.

Schmetzer K., Bernhardt H.-J., Hainschwang T. (2012) Flux-grown synthetic alexandrites from Creative Crystals Inc. Journal of Gemmology, Vol. 33, No. 1 – 4, pp. 49 - 81.

Schmetzer K., Hainschwang T. (2012) Origin determination of alexandrite – a practical example. InColor, Winter.

Hainschwang T., Notari F. (2012) Zoisite - More than just Tanzanite. InColor, Spring, pp. 44 - 49.

Hainschwang T., Notari F. (2012) Melee-Sized Synthetic Diamonds: A Major Challenge for the Market and for Gem Testing Laboratories. The GemGuide, Vol. 31, No. 4, pp. 1 - 15.

Hainschwang T., Notari F. (2012) Synthetischer Diamant: Ein kurzes Update. Gold’Or 9/12, pp. 62 - 63.

Hainschwang T., Bosshart G. (2012) Ein aussergewöhnlicher farbwechselnder Safir. Gold’Or 3/12.

Hainschwang T. (2012) Seltenheiten aus den Weltmeeren. Gold’Or 7/12, p. 66.

Hainschwang T. (2012) Ein Diamant, der die Farbe wechselt. Gold’Or 5/12, p. 61.

Hainschwang T., Notari F. (2011) Weitere Neuheiten über synthetische Melee-Diamanten. Gold’Or 8/11. 

Hainschwang T., Notari F. (2011) Synthetischer Diamant: ein "Dornröschen"- Problem wird aktuell. Gold’Or 2/11.

Hainschwang T. (2011) Dreidimensionale Radiographie – Eine neue Methode zur Untersuchung von Edelsteinen und Perlen. Gold‘Or 4/11. 

Hainschwang T. (2011) Aussergewöhnliche exotische Naturperlen. Gold’Or 6/11, pp. 58 - 59.

Hainschwang T. (2011) Three-dimensional X-ray radiography. Gems and Jewellery, Vol. 20, No. 1, pp. 11 - 14.

Hainschwang T. (2011) Einige interessante Perlimitationen. Gold’Or.

Schmetzer K., Bernhardt H.-J., Hainschwang T. (2011) Chemical and growth zoning in trapiche tourmaline from Zambia – a re-evaluation. The Journal of Gemmology, Vol. 32, No. 5–8, 2011, pp. 151 - 173.

Hainschwang T. (2011) Three-Dimensional X-Ray Radiography – A New Technique for Gemstone and Pearl Testing. InColor, Spring, pp. 30 - 34.

Hainschwang T., Hochstrasser T., Irka Hajdas I., Keutschegger W. (2010) A cautionary tale about a little-known type of non-nacreous calcareous concretion produced by the Magilus antiquus marine snail. Journal of Gemmology Vol. 32, No. 1 - 4, pp. 15 - 22.

Hainschwang T. (2010) Gemmologische Herausforderungen – damals, heute, morgen. Gold‘Or 10/10.

Hainschwang T. (2010) Naturperle - Quo vadis? Gold’Or 8/10, pp. 64 – 66. 

Hainschwang T. (2010) Seltenes Exemplar eines tropfenförmigen, bestrahlten grünen Diamanten mit « Umbrella-Effekt ». Gold’Or 5/10, pp. 68 - 69.

Hainschwang T. (2010) Ein etwas anderer Smaragd. Gold’Or 3/10, pp. 86 - 87.

Hainschwang T. (2010) Une description de quelques émeraudes extraordinaires, les émeraudes gota de aceite et les émeraudes étoilées. Revue de l’Association Française de Gemmologie No. 171, pp. 7 - 9.

Hainschwang T. (2010) Natural pearl - Quo vadis? Gem Market News, Vol. 29, No. 4, pp. 1 - 15.

Hainschwang T. (2010) The Evolution of Analytical Equipment in Gemology - its Advantages and Dangers.Gem Market News. 

Hainschwang T. (2009) Blaue Berylle mit instabiler Farbe. Gold'Or, 10/09, pp. 63 - 64.

Hainschwang T., Hochstrasser T., Bürgin T. (2009) Eine äusserst ungewöhnliche natürliche Blisterperle. Gold'Or, 09/09, pp. 68 - 69.

Hainschwang T. (2009) Anwendung elektromagnetischer Strahlung in der modernen Gemmologie. Gold'Or, 07/09, pp. 59 - 60.

Schmetzer K, Bosshart G., Hainschwang T., Bernhardt H.-J. (2009) Colour-change garnets from Madagascar: variation of chemical, spectroscopic and colorimetric properties. Journal of Gemmology Vol. 31, No. 5-8, pp. 235 - 282.

Hainschwang T. (2009) Clarity treated diamonds. Gems and Jewellery, Vol. 18, No. 2, pp. 10 - 11.

Hainschwang T. (2009) Faszinierende Phantom-Wolken in natürlichen Diamanten. Gold'Or, 04/09, pp. 66 - 67.

Hainschwang T. (2009) Die Diamant-Typen, deren Definition und Bedeutung. Gold'Or, 02/09, pp. 66 - 67. 

Hainschwang T. (2009) The Synthetic Quartz Problem. The GemGuide; Gem Market News, Vol. 28, Issue 1 (January/February), pp. 1 - 5.

Hainschwang T. (2008) Nuove imitazioni di diamante grezzi sul mercato. Rivista Gemmologica Italiana, Vol. 3, No. 4, pp. 245 - 248.

Hainschwang T. (2008) A colour changing titanite from Afghanistan. Gems and Jewellery, Vol. 17, No. 3, pp. 6 - 7.

Hainschwang T. (2008) Lead glass treated blue sapphire. Gems and Jewellery, Vol. 17, No. 3, pp. 4 – 5. 

Hainschwang T. (2008) Color change effects in gemstones – when matter plays with light. InColor, Summer, pp. 46 - 54. 

Hainschwang T. (2008) Das wunderbare Innenleben von Edelsteinen, Teil 2. Gold'Or, No. 9.

Hainschwang T. (2008) Glas oder Rubin, das ist hier die Frage. Gold'Or, No. 8. 

Hainschwang T. (2008) Farbwechselnde Edelsteine und Edelsteinimitationen - über das Spiel von Materie mit Licht. Gold'Or, No. 7. 

Hainschwang T. (2008) Die Lumineszenz von natürlichem und synthetischem Diamant und deren Bedeutung. Gold'Or, No. 6.

Hainschwang T. (2008) Rough diamond fakes. Gems&Jewellery, Vol. 17, No. 2, pp. 3 - 5.

Hainschwang T. (2008) Alarmierende Rohdiamant-Imitationen im Markt. Gold'Or, No. 5.

Hainschwang T. (2008) Natürlicher oder synthetischer Quarz, das ist hier die Frage. Gold'Or, No. 4.

Hainschwang T., Notari F. (2008) Specular reflectance infrared spectroscopy – A review and update of a little exploited method for gem identification. Journal of Gemmology, Vol. 21, No. 1-2, pp. 23 - 29.

Hainschwang T. (2008) Das Innenleben von behandelten Edelsteinen, Synthesen und Imitationen. Gold’OR, No. 3.

Hainschwang T. (2008) Das wunderbare Innenleben von Edelsteinen. Gold’OR, No. 2, pp. 56 - 57.

Hainschwang T. (2008) Trapiche Uvit Turmalin aus Sambia. Gold’OR, No. 1, pp. 78 - 80.

Hainschwang T. (2007) Warum Diamanten farbig sein können. Gold’OR, No. 1, pp. 71 – 74.

Hainschwang T., Katrusha A., Vollstaedt H. (2005) HPHT treatment of different classes of type l brown diamonds. Journal of Gemmology, Vol. 29, No. 5-6, pp. 261 - 273.

Hainschwang T., Notari F. (2004) A natural diamond with very high Ni content, in Gem News International, Gems and Gemology, vol. 40, N°4, pp. 334 - 336.

Hainschwang T. (2004) les diamants bruns: classification et origine de la couleur. Revue de Gemmologie, No. 150, pp. 1 - 5.

Hainschwang T. (2003) Classification and color origin of brown diamonds, D.U.G. diploma, Université de Nantes, France, November 10^th, 91 p.

Deljanin B., Hainschwang, T., Fritsch, E. (2003) Update on study of CVD diamonds. Jewellery News Asia, No. 231, pp. 134 - 139. 

Hainschwang T. (2003) An alexandrite-emerald intergrowth. Gems & Gemology, Vol. 39, No. 3, pp. 226 - 227.

Hainschwang T. (2003) A bicolored synthetic diamond. Gems & Gemology, Vol. 39, No. 2, pp. 163 - 164. 

Hainschwang T. (2003) Magnetic corundum. Gems & Gemology, Vol. 39, No. 2, pp. 154 - 155.

Schmetzer, K., Hainschwang, T., Kiefert, L., Bernhardt, H.-J. (2002) Rosa bis rosa-orangefarbene Malaya-Granate aus Bekily, Madagaskar. Goldschmiedezeitung (GZ), 9/2002, pp. 80 - 85.

Hainschwang T. (2002) Die Reinheitsverbessung von Smaragden und ihre Bestimmung. Gold’OR, No. 3, pp. 122 - 124.

Hainschwang T. (2002) Trapiche-Smaragde, Safire und Rubine. Gold’OR, No. 2, pp. 148-150. 

Hainschwang T. (2002) Über die Reinheitsbehandlungen und Imitationen von Diamanten. Gold’OR, No. 1, pp. 110 - 114. 

Hainschwang T. (2002) Identifying Clarity Enhanced Emeralds. The Guide; Gem Market News, Vol. 21, Issue 5 (September/October), pp. 3 - 8. 

Schmetzer K., Hainschwang T., Bernhardt H.-J. (2002) Yellowish green and green chrysoberyl from Ilakaka, Madagascar. Gems & Gemology, Vol. 38, No. 3, pp. 261.

Hainschwang T. (2002) A glowing manufactured gem. Gems & Gemology, Vol. 38, No. 4, pp. 358-360.

Hainschwang T. (2001) Synthetische Diamanten und ihre Identifikation. Gold’OR, No. 4, pp. 140 - 145.

Hainschwang T. (2001) Die Farbbehandlungen von Diamanten und ihre Identifikation. Gold’OR, No. 3, pp. 152 - 159.

Hainschwang T. (2001) Diamanten – Behandlungen, Synthesen, Imitationen. Company brochure (Gemlab) of 24 p. 

Hainschwang T. (2000) Benitoit-König der Raritäten. Gold’OR, No. 3, pp. 152 - 153.

Hainschwang T. (2000) Ein aussergewöhnliches Katzenauge.Gold’OR, No. 4, pp. 108 - 109. (4/2000). 

Notari F., Boillat P.-Y., Grobon Caplan C. (2000) L'euclase bleu-verte de Colombie, Revue de Gemmologie AFG, N° 140, pp. 18 - 20.

Hainschwang T. (1999) Farbwechsel Granat - das Chamäleon der Edelsteine. Gold’OR, No. 4, pp. 108 - 109.

Conferences

Hainschwang T. (2025) The Challenges in Gemological Testing of Natural and Synthetic Diamonds in all Colors and Sizes. NAJA’s 63rd Annual Winter ACE©It Education Conference, Tucson, February 1st.

Hainschwang T. (2024) The Ever-Growing Challenge of Screening Melee-Sized Diamonds in all Colors for Synthetics, Imitations and Treatments. Conference of the SGG Regionalgruppe V – Zürich-Winthertur, Zürich, November 15th.

Hainschwang T., Hainschwang G., Notari F. (2024) Pink to Red and Violet Diamonds from the Argyle Mine, Australia: Properties, Color, Origin and Latest Research Results. 25th FEEG Symposium – October 19th, Brussels.

Hainschwang T. (2024) The Ever-Growing Challenge of Screening Melee-Sized Diamonds in all Colors for Synthetics, Imitations and Treatments. Vicenzaoro Gem Talks, Vicenza, Italy, September 8th.

Hainschwang T., Notari F., Hainschwang G. (2024) The Significance of Luminescence Imaging (and Spectroscopy) in Diamond Testing and Research. De Beers Diamond Conference, July 9th.

Hainschwang T. (2024) From the Rare to the Remarkable to the Curious: A Career in a Gem Testing Laboratory. The Goldsmith Marketplace Meeting Day, Diamond Trade Exchange, Antwerp, June 16th.

Hainschwang T. (2024) A Deeper Dive into Diamond Defects. NAJ Valuers Conference and Summit 2024, Birmingham, June 23rd.

Hainschwang T. (2024) The Processes and Challenges of Color Origin Determination of Colored Diamonds. NAJ Valuers Conference and Summit 2024, Birmingham, June 22nd.

Hainschwang T., Pamies G., Hammer V. (2024) Testing of Historical Colored Diamonds at the NHM Vienna and NHM London. Annual Meeting of the Swiss Gemmological Association (SGG), Nottwil, June 11th.

Hainschwang T. (2024) Synthetic Diamonds: Update and Current Market Situation. AWDC Diamond Office Antwerp, May 23rd.

Hainschwang T. (2023) Violet Diamonds from Argyle: New Insights into the Cause of their Unique Color. IGC Conference, Tokyo, October 24^th.

Hainschwang T. (2023) Fancy Color Diamonds: Natural or Treated Color, that’s the Big Question! DCVA Antwerp, September 6^th.

Hainschwang T., Pamies G., Notari F. (2023) A study of brown to “olive” vs pink diamonds with deformation-related color: similarities and differences explained and defined. DeBeers Diamond Conference, University of Warwick, Coventry, July 12^th.

Hainschwang T. (2023) Challenges of Applied Gemology using Modern Analytical Techniques. 5th National Conference of Gemmology, Sapienza University, Rome, June 26^th.

Hainschwang T. (2023) Synthetic Diamonds: Facts, Properties, Testing + Challenges. DCVA Antwerp, June 14^th.

Hainschwang T. and Cullinan M. (2023) Diamond Traceability and The Cullinan Reports: A new Approach of Diamond Fingerprinting. Scottish Gemmological Association SGA Conference, Cumbernauld, Scotland, April 30^th.

Hainschwang T. (2023) The Challenges in Gemological Testing of Natural and Synthetic Diamonds in all Colors and Sizes. Scottish Gemmological Association SGA Conference, Cumbernauld, Scotland, April 29^th.

Hainschwang T. (2022) The analytical challenges in testing melee-sized diamonds in all colors. XIXe Rendez-Vous Gemmologiques de Paris, September 8^th.

Hainschwang T. (2022) The Ethical and Ecological Issues of Natural and Synthetic Diamonds: Facts and Fiction. AGA Virtual Tucson Conference, February 16^th.

Hainschwang T. (2022) The hidden fluorescence in red beryl and its analytical significance. Annual Meeting of the Swiss Gemmological Association (SGG), Flueli-Ranft, Switzerland.

Hainschwang T. (2021) The analytical challenges in testing melee-sized diamonds and colored stones. Gem-A Virtual Conference, November 7^th.

Hainschwang T. (2021) The challenges in testing melee-sized diamonds and colored stones. Gem Atlas Webinar, November 12^th.

Hainschwang T. (2021) Testing Natural, Treated and Synthetic Diamonds by Spectroscopy and Fluorescence Imaging. Advanced Diamond Academy Webinar, June 17^th.

Hainschwang T. (2021) Testing Natural, Treated and Synthetic Diamonds by Spectroscopy and Fluorescence Imaging. AGA Virtual Las Vegas Conference, June 3^rd.

Hainschwang T., Notari F., Pamies G. (2021) The significance of the nickel-related 990 nm series absorptions and the 1330 nm centre in diamonds. De Beers Diamond Research Conference, July 6^th to 8^th.

Hainschwang T, Pamies G., Bosshart G., Notari F. (2021) Green to Greenish Blue to Yellow Green Diamonds: The Latest Research on the Most Difficult Group of Fancy Color Diamonds. GGTL Liechtenstein Green Diamond Webinar, April 29^th.

Hainschwang T., Pamies G., Notari F. (2020) Brown diamonds: A new in-depth look at their properties and classification. AIGS Gem Tips Webinar, April 24^th.

Hainschwang T. (2019) The heating of spinel - a step by step treatment study. Annual Meeting of the Swiss Gemmological Association (SGG), Flueli-Ranft, Switzerland.

Hainschwang T. (2019) The Color and Color Origin of Untreated and Treated Natural and Synthetic Diamonds. International Diamond-Days, Linz/Austria, May 9^th.

Hainschwang T. and Pamies G. (2019) Diamond Treatments Revisited: A Study Of The Behavior Of Diamonds and Their Defects When Exposed To Irradiation, Annealing, and HPHT Techniques. 70^th Diamond Conference, University of Warwick, Coventry, July 10^th.

Hainschwang T. (2019) Diamond Luminescence and its Applications for Diamond Testing. Open Colloquium, Nantes, August 27^th.

Hainschwang T. (2019) The Effect of HPHT Treatment on Previously Irradiated and Annealed Diamonds of all Types and Colors. 36^th International Gemmological Conference IGC, Nantes, August 28^th.

Hainschwang T. and Pamies G. (2019) Beyond Green Diamonds - A Study of Naturally Colored and Treated Diamonds to Solve the Mystery of the Most Difficult Color Origins. NCDIA Conference, Hongkong, September 17^th.

Hainschwang T. (2018) Diamond Testing and Screening Using GGTL Instruments and its Application for the GGTL Diamond Treatment Research Project. AGA Conference, Las Vegas, June 1^st. 

Hainschwang T. (2018) The World of Diamonds. Seminar Gemological Society of Finland, Lahti, April 21^st.

Hainschwang T. (2018) The Country of Origin Determination of Gemstones by Gem Testing Laboratories: Capacities and Limitations. Seminar Gemological Society of Finland, Lahti, April 21^st.

Hainschwang T. (2018) The Colour and Colour Origin of Untreated and Treated Natural and Synthetic Diamonds. 4^th Mediterranean Gemmological and Jewellery Conference, Budva/Montenegro May 19^th.

Hainschwang T. (2017) Country of Origin and Treatment Determination of Colored Gemstones: Possibilities and Limitations. RJC Conference, Basel.

Notari F.,Fritsch E., Caplan C., Hainschwang T. (2017) Are boehmite needles in corundum Rose channels, IGC conferences. 

Hainschwang T., Notari F., Bosshart G. (2017) A Spectroscopic Study of Historical Fancy Colour Diamonds in Museum Collections. DeBeers Diamond Conference, Warwick, UK. July 11^th.

Hainschwang T. (2017) The Launch of a Major Diamond Treatment Project. European Gemmological Symposium (EGS), Zermatt/Switzerland, June 30^th. 

Hainschwang T. (2017) The World of Diamonds. Herzog Loibner, Schaan/Liechtenstein, May 30^th.

Hainschwang T. (2017) Luminescence-Based Identification of Synthetic Diamonds. ASMEBI Conference – Diamants de synthèse: l’horlogerie et la joailerie en danger? Geneva/Switzerland, April 6^th.

Hainschwang T. (2017) The World of Diamonds. Conference at the headquarters of Cartier, Paris/France, January 24^th.

Hainschwang T. (2016) The Challenging World of Diamonds of all Colours: Natural VS Synthetic and Treated Diamonds. University of Mainz, December 19^th.

Hainschwang T., Fritsch E., Shiryaev A. (2016) The Y centre and the 480 nm absorption: possible oxygen defects in diamond. DeBeers Diamond Conference, Warwick, UK. July 13^th.

Hainschwang T. (2016) The (R)Evolution of Synthetic and Treated Diamonds in the Gem Market: From Single Stones to Melee. Scandinavian Gem Symposium, Kisa/Sweden June 18^th.

Hainschwang T. (2016) The Natural and Artificial Colour Origin of Gems: The Geological Context and the Artificial Modification of Chromophores and other Colour-Causing Defects. École Thématique du CNRS – INSU, Toulouse, France, June 9^th.

Hainschwang T. (2016) The Colour and Colour Causes of Untreated and Treated Natural and Synthetic Diamonds, 1. Arbeitstagung Deutsche Gemmologische Gesellschaft, Idar Oberstein May 21^st.

Hainschwang T. (2016) The Aurora Collection and Historical Museum Collections: A Fascinating Excursion into the World of Fancy Colour Diamonds. Scottish Gemmological Conference, Peebles, April 30^th.

Hainschwang T., Notari F. (2016) The properties and efficient detection of colourless and coloured melee sized HPHT and CVD synthetic diamonds. Annual Meeting of the Swiss Gemmological Association (SGG), Magglingen, Switzerland, April 18^th.

Hainschwang T., Notari F. (2015) UV- and laser-excited luminescence techniques for the efficient detection of HPHT and CVD synthetic diamonds of all sizes, shapes and colors. 1^st DDES Diamond Detection Expo & Symposium, Mumbai, December 14^th.

Hainschwang T., Notari F. (2015) Authenticity and Origin of Colour Testing of Diamonds. 1^st DDES Diamond Detection Expo & Symposium, Mumbai, December 15^th.

Hainschwang T., Notari F., Fritsch E. (2015) Standards and Protocols for Emerald Analysis in Gem Testing Laboratories. 1^st International Emerald Symposium, Bogotà/Colombia, October 13^th.

Hainschwang T., Notari F., Fritsch E. (2015) Natural „lonsdaleite and CO₂ rich“ diamonds. IGC, Vilnius, Lithuania, August 27^th.

Hainschwang T., Notari F., Fritsch E. (2015) Natural „lonsdaleite and CO₂ rich“ diamonds. DeBeers Diamond Conference, Warwick, UK. July 7^th.

Hainschwang T. (2015) The Identification of Natural Pearls:  An Ever-Growing Challenge. 1^st Mediterranean Gemmological & Jewellery Conference, Athens, June 27^th.

Hainschwang T., Notari F. (2015) HPHT and CVD Synthetic Diamonds: Facts, Myths, Melee, New Developments and Detection. 1^st Mediterranean Gemmological & Jewellery Conference, Athens, June 27^th.

Hainschwang T., Notari F. (2015) HPHT and CVD Synthetic Diamonds: Facts, Myths, Melee, New Developments and Detection. AGA Conference, Las Vegas, June 3^rd, via Skype.

Hainschwang T., Notari F. (2015) Hazards of Green Diamonds Treated with Radioactive Salts. Annual Meeting of the Swiss Gemmological Association (SGG), Meisterschwanden, Switzerland, April 21^th.

Hainschwang T., Notari F. (2015) How to Change a Diamonds Colour. Mallorca Gem Quest, Mallorca/Spain, April 19^th.

Hainschwang T. (2015) A Day at a Research Gem Testing Laboratory. Mallorca Gem Quest, Mallorca/Spain, April 18^th.

Hainschwang T., Notari F. (2015) HPHT and CVD Synthetic Diamonds: Facts, Myths, Melee and New Developments. Rapaport Diamond Show, Basel, Switzerland, March.

Notari F., Caplan C., Fritsch E., Hainschwang T. (2015) The polycrystalline Boehmite (γAlOOH) in corundum, Poil, France.

Hainschwang T. (2014) The Treatments of Diamonds. Conference for the Press, Lausanne, November 14^th. 

Hainschwang T., Notari F. (2014) The challenges faced by green to greenish blue diamonds coloured by natural or artificial irradiation. Gem-A conference, London, November 1^st.

Hainschwang T. (2014) Type Ib Diamonds: More than just Canary Yellow. World of Gems Conference, Chicago/USA, September 20^th.

Hainschwang T., Fritsch E. (2014) A detailed study of irradiated, HPHT treated and multi-step treated natural and synthetic type Ib diamonds. DeBeers Diamond Conference, Warwick, UK. July 8^th.

Hainschwang T., Notari F. (2014) The Challenge of Identifying Melee-Sized HPHT and CVD Grown Synthetic Diamonds. Annual Meeting of the Swiss Gemmological Association (SGG), Flueli-Ranft, Switzerland, May 6^th.

Hainschwang T. (2014) Luminescence phenomena in diamond and their applications in diamond testing. AGA conference, Tucson, February 5^th.

Hainschwang T., Notari F. (2014) Hazards of green diamonds treated with radioactive salts. AGA conference, Tucson, February 5^th.

Hainschwang T., Notari F. (2014) The Challenge of Identifying Recent Generations of Melee-Sized Synthetic Diamonds. Gemmology workshop, University of Geneva, Geneva, Switzerland, January 24^th.

Hainschwang T., Notari F. (2013) The Challenge of Identifying Recent Generations of Melee-Sized Synthetic Diamonds. 4th Italian Congress of Scientific Gemmology, Naples, Italy, October 1^st.

Hainschwang T. (2013) When gemstones glow: emission phenomena of diamond, ruby, sapphire & Co. Regional meeting of the Swiss Gemmological Society, Ticino, Switzerland.

Hainschwang T. (2013) When gemstones glow: emission phenomena of diamond, ruby, sapphire & Co. CORALS-2013, University of Vienna, public lecture, July 3^rd.

Hainschwang T., Fritsch E., Notari F., Rondeau B., Katrusha A. (2013) The origin of colour of C centre containing natural diamonds. DeBeers Diamond Conference, Warwick, UK. July 10^th.

Hainschwang T., Bosshart G., Notari F., Balmer W., Hammer V. (2013) Natural green diamonds. European Gemmological Symposium (EGS), Leiden/the Netherlands, June 15^th. 

Hainschwang T., Notari F. (2013) Geographical origin determination of gemstones – The capabilities and limitations of gemological laboratories. UNICRI Meeting, Torino, April 9^th.

Hainschwang T., Notari F. (2012) The Challenge of Identifying Recent Generations of Melee-Sized Synthetic Diamonds. Conference for the Japan Germany Gemmological Laboratory, Kofu, Japan, Nov. 14^th.

Hainschwang T., Notari F. (2012) The Challenge of Identifying Recent Generations of Melee-Sized Synthetic Diamonds. Gem-A conference, November 4^th.

Hainschwang T. (2012) A Review and Update on HPHT and CVD Grown Synthetic Diamonds. Infomat Conference, Neuchâtel, Switzerland, October 26^th.

Hainschwang T., Fritsch E., Notari F., Rondeau B. (2012) New data on natural diamonds exhibiting dominant Y centre one phonon infrared absorption. DeBeers Diamond Conference, Warwick, UK. July 10^th.

Hainschwang T., Notari F., Karampelas S., Fritsch E. (2012) A New Approach to the Detection of the Heat Treatment of Tanzanite and Other Zoisites. AGA conference, Tucson, February 1^st.

Hainschwang T., Notari F., Karampelas S., Fritsch E. (2012) A New Approach to the Detection of the Heat Treatment of Tanzanite and Other Zoisites. GILC, Tucson, January 30^th.

Hainschwang T., Fritsch E. (2011) Photoluminescence spectroscopy and imaging of type Ib diamonds. IGC congress, Interlaken, Switzerland July 15^th.

Hainschwang T. (2011) Novelties and Challenges of the Diamond Analysis in the 21^st Century. Conference of the Gemmological Association of New Zealand (GANZ), Rotorua, New Zealand, July 9^th.

Hainschwang T. (2011) Advanced Instrumentation in Gemology - its Uses, Advantages and Risks. Conference of the Gemmological Association of New Zealand (GANZ), Rotorua, New Zealand, July 9^th.

Hainschwang T., Fritsch E. (2011) Photoluminescence of type Ib diamonds: Imaging and spectroscopy. DeBeers Diamond Conference, Warwick, UK. July 6^th.

Hainschwang T., Notari F. (2011) The Distinction of Natural and Synthetic Opals and the Identification of their Treatments. St. Marie aux Mines, June 24^th.

Hainschwang T. (2011) The Identification of Natural Pearls – An Ever Growing Challenge. CRG, Nantes, May 17^th.

Hainschwang T. (2011) The Identification of Natural Pearls – An Ever Growing Challenge. First conference of the LFG, Paris, May 16^th.

Hainschwang T., Notari F. (2011) Traceability of emeralds. A robust geographical origin characterization process for emerald producers. ICA conference, Rio de Janeiro, May 4^th. 

Hainschwang T. (2011) The Identification of Natural Pearls – The New Cultured Pearl Problem. AGA Conference, Tucson, February 2^nd.

Hainschwang T. (2011) An Overview of Recent Challenges in Diamond Analysis and the Necessary Analysis Methods: From CVD to HPHT and UV-Vis to PL. Regional Meeting of the Gemmological Association of Switzerland (SGG), Winterthur, January 25^th.

Notari F., A. Delaunay, Caplan C., Hainschwang T. (2011) Problématique de l’origine géographique, Suivi de: Les saphirs du Cachemire. Laboratoire Français de Gemmologie, Paris, September.

Hainschwang T. (2010) The Role of Spectroscopy for the Distinction of Natural Color and Color Treated Diamonds in the 21st Century. Keynote speech at the session “Gem materials: origins, properties, and new analytical challenges“ of the 20^th General Meeting of the International Mineralogical Association (IMA), Budapest, August 25^th.

Hainschwang T., Fritsch E. (2010) Influence of HPHT treatment on the colour of natural type Ib diamonds. DeBeers Diamond Conference, Warwick/UK. July 15^th.

Hainschwang T. (2010) The Identification of Natural Pearls – The New Cultured Pearl Problem. St. Marie aux Mines/France, June 24^th to 27^th.

Hainschwang T. (2010) The Biggest Gemmological Chalenges and their Identifications. St. Marie aux Mines/France, June 24^th to 27^th. 

Hainschwang T. (2010) Neuheiten und Herausforderungen der Diamantanalyse im 21. Jahrhundert. Annual Meeting of the Swiss Gemmological Association (SGG), Sarnen/Switzerland, May 3^rd. 

Hainschwang T. (2010) Advanced Instrumentation in Gemology - its Uses, Advantages and Risks.AGA Conference, Tucson/USA, February 3^rd.

Notari F., Hainschwang T. (2009) Emeraude: La nature des résines époxydes, leur nettoyage. French Gemological Association, “Rendez-vous Gemmologiques de Paris”, Paris/France.

Hainschwang T. (2009) An Overview of de Treatments of Diamonds, Ruby, Sapphire and Emerald and their Detection (in Spanish). Conference organized by the Fedesmeralda and CDTEC in Santafé de Bogotá DC, Colombia, December 17^th. 

Hainschwang T. (2009) Gemmologische Kuriositäten und Raritäten aus dem GEMLAB Labor. Regional meeting of the SGG, section V, Winterthur/Switzerland, November 11^th.

Hainschwang T. (2009) What’s so special about type Ib diamonds? Annual Symposium of the Dutch Gemmological Guild, November 8^th. 

Hainschwang T. (2009) Optical and spectral characteristics of "exotic" natural fancy colour diamonds. GemA Conference, London, October 17^th to 18^th. 

Hainschwang T., Respinger A., Notari F., Hartmann H. J., Günthard C. (2009) A comparison of diamonds irradiated by high fluence neutrons or electrons, before and after annealing. IGC Arusha/Tanzania, October 9^th to 14^th. 

Hainschwang T. (2009) Gemmologische Kuriositäten und Raritäten aus dem GEMLAB Labor. Regional meeting of the SGG, section VI, Wildhaus/Switzerland, September 22^nd.

Hainschwang T. (2009) Une description de quelques émeraudes extraordinaires – les émeraudes “gota de aceite” et étoilées. 10^th Rendez-vous Gemmologiques de Paris, Paris/France, September 7^th. 

Shiryaev, A.A., Wiedenbeck, M., Hainschwang, T. (2009) Oxygen distribution and speciation in bulk of monocrystalline diamonds and its correlations with other impurities. International Conference on Defects in semiconductors, St. Petersburg. 

Hainschwang T. (2009) Les pierres gemmes - Les problèmes causés par la diversité des traitements et des synthèses. St. Marie aux Mines/France, June 25^th to 28^th.

 Hainschwang T. (2009) Comparaison des diamants naturels et synthétiques, traités et non-traités. St. Marie aux Mines/France, June 25^th to 28^th.

Hainschwang T., Respinger A., Notari F., Hartmann H. J., Günthard C. (2009) The comparison of the effects of high doses of neutron and electron irradiation on diamond. EGS, Bern/Switzerland June 6^th. 

Hainschwang T. (2009) Vergleich von naturfarbigen und farbbehandelten Diamanten durch spektroskopische und optische Analysen, 1. Arbeitstagung Deutsche Gemmologische Gesellschaft, Idar Oberstein May 17^th. 

Hainschwang T. (2009) The distinction of natural and synthetic diamonds. Meeting of the Swiss Goldsmiths in the offices of Algordanza, Chur, April 6^th. 

Hainschwang T. (2009) A spectroscopic comparison of untreated and treated natural and synthetic colored diamonds. Short course and workshop “Non-destructive analysis of gemstones and other geo-materials”, Institut für Mineralogie und Kristallographie, University of Vienna, Vienna/Austria, March 5^th. 

Notari F., Hainschwang T., Fritsch E., Massi L., Breeding C.M., Rondeau B., Grobon Caplan C. (2008) Les caractéristiques spectrales IRTF des diamants dits riches en CO₂ sont-elles représentatives de leurs pressions de formation. 22^nd réunion des Sciences de la Terre, Nancy, April 21-24^th. Résumé dans le livre des résumés.

Hainschwang T., Notari F., Fritsch E., Massi L., Rondeau B., Breeding C.M., Vollstaedt H. Traitement HPHT des diamants bruns contenant du CO₂ et des diamants apparentés aux diamants CO₂. 22^nd réunion des Sciences de la Terre, Nancy, 21-24^th April 2008. Résumé dans le livre des résumés.

Notari F., Hainschwang T., Grobon Caplan C., Fritsch E., (2008) Identification of synthetic sapphires (pulling method) of yellow to orangy pink by infrared spectroscopy. Poil/France.

Fritsch E., Notari F., Hainschwang T., Rondeau B. (2008) Oxygen in diamond: the strange case of CO₂ diamonds. AIMPRO Meeting, Nantes/France, December 12^th.

Hainschwang T. (2008) Die Evolution der Mehrfachbehandlungen von Diamanten. Annual meeting of the Gemological association of Switzerland, Flüeli-Ranft, May 6^th (French presentation, PPT in German).

Notari F., Delaunay A., Grobon Caplan C., Hainschwang T. (2007) Nouvelles caractéristiques des saphirs du Cachemire. French Gemological Association, “Rendez-vous Gemmologiques de Paris”, Paris, France.

Hainschwang T. (2007) The color phenomena of rainbow andradites from Nara, Japan. Annual meeting of the Gemological Association of Switzerland, May 7th.

Hainschwang T., Notari F., Rondeau B., Fritsch. E., Massi L., Breeding M. (2006) Natural CO₂-rich colored diamonds. Gem Research Conference, San Diego, USA.

Hainschwang T., Notari F., Surbeck H, Baptiste M. (2006) Radioactivity in diamonds. Regional meeting of the Gemological Association of Switzerland. 

Hainschwang T., Notari F. (2006) Tourmaline trapiche d’Afrique. Annual meeting of the Gemological Association of Switzerland. 

Hainschwang T., Notari F. (2005) Les corindons trapiche. French Gemological Association, Rendez-vous Gemmologiques de Paris, Paris, France. 

Hainschwang T., Notari F., Fritsch E. (2005) Neuheiten in der Welt der Diamanten. Annual meeting of the Gemological Association of Switzerland.

Hainschwang T., Notari F. (2005) Les corindons trapiche. Annual meeting of the Gemological Association of Switzerland.

Hainschwang T., Deljanin B., Fritsch E. (2004) CVD synthetic diamonds, identification with advanced gemological techniques. AGA conference, Tucson, USA.

Hainschwang T. (2004) Classification of brown diamonds and HPHT treatment of the proposed classes. AGA Conference, Tucson/USA.

Hainschwang T. (2004) Les diamants bruns – classification et origine de la couleur. French Gemological Association, Rendez-vous Gemmologiques de Paris, Paris/France. 

Hainschwang T. (2004) Le rôle des imitations, synthèses et traitements dans le monde des pierres précieuses. St. Marie aux Mines/France, Mineral and Gem Show, four conferences. 

Hainschwang T., Notari F., Fritsch E. (2004) Les diamants ABC- un nouveau type de diamant. La gemmologie à Poil, Poil/France.

Hainschwang T. (2003) A summary of all known diamond treatments and their detection. Annual meeting of the Gemological Association of Finland, Lahti, March 30^th.

Hainschwang T. (2003) A short update on synthetic diamonds and their detection. Annual meeting of the Gemological Association of Finland, Lahti, March 30^th. 

Hainschwang T. (2003) The new Beryllium-Treatment of corundum. Annual meeting of the Gemological Association of Finland, Lahti, March 29^th.

Hainschwang T. (2003) Emerald treatments and their detection. Annual meeting of the Gemological Association of Finland, Lahti, March 29^th.

Hainschwang T. (2003) Les traitements de la topaze. Annual meeting of the Gemological Association of Switzerland, May 11^th-13^th.

Hainschwang T. (2003) Les diamants bruns – classification et origine de la couleur. La gemmologie à Poil, Poil/France. 

Hainschwang T. (2002) Experiences in the gemstone analysis with a portable spectrophotometer- and Raman-system. Annual meeting of the Austrian Gemmological Association, June 21^st, Linz/Austria.