Skip to main content
Navigation principale
About us
Services
Main services
Diamond services
Gem services
Pearl services
Exclusive services
Cleaning and sorting of chemically-unset melee diamonds
Cleaning & oiling of emeralds
Coral species identification
Cullinan report
Consulting
Publications
Products
News
Contact
en
fr
News
Spiral structure in a Colombian emerald
Select category
- Any -
Insight
Micrographs
Publication
Apply
Micrographs
03.01.2024
Margarite crystals in an unheated ruby from Mozambique
Read
Micrographs
27.12.2023
Spherical gas bubbles in a cavity filled with epoxy resin in a Colombian emerald.
Read
Micrographs
20.12.2023
Heat-treated bicolour sapphires from Shandong Changle, China
Read
Micrographs
15.12.2023
Epigenetic polycrystalline boehmite nestled in a fissure of an unheated purple metamorphic sapphire
Read
Publication
01.07.2023
Cinnabar Inclusions in Ethiopian Opal
Read
Publication
01.07.2023
An Ethiopian cup in rhinoceros horn (1/2)
Read
Publication
30.06.2023
An Ethiopian cup in rhinoceros horn (2/2)
Read
Publication
25.06.2023
An exceptional 9.89 carats photochromic zircon
Read
Publication
12.05.2021
The unusual case of a jewel with a large number of flux-grown synthetic rubies sold as natural rubies
Read
Micrographs
01.04.2021
Synthetic flame-fusion colour-change sapphire seen under laser excitation
Read
Micrographs
04.03.2021
Synthetic flame-fusion synthetic colour-change sapphire seen under laser excitation
Read
Micrographs
11.02.2021
HPHT synthetic yellow diamond, luminescence under strong SWUV irradiation
Read
Pagination
First page
« First
Previous page
‹ Previous
Page
1
Page
2
Page
3
Current page
4
Page
5
Page
6
Page
7
Next page
Next ›
Last page
Last »
Navigation SM
About us
Services
Main services
Diamond services
Gem services
Pearl services
Exclusive services
Cleaning and sorting of chemically-unset melee diamonds
Cleaning & oiling of emeralds
Coral species identification
Cullinan report
Consulting
Publications
Products
News
Contact
en
fr