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Spiral structure in a Colombian emerald

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Insight

17.06.2025

Restoring the beauty of emeralds: our exclusive cleaning and oiling method

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Publication

12.06.2025

Coloured glass coating of quartz beads before the 13th century: An undocumented sapphire imitation

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Micrographs

11.06.2025

Octahedral sylvite crystals in a Colombian emerald

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Insight

07.06.2025

GGTL Laboratories at EPHJ 2025: networking and innovation

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Micrographs

28.05.2025

Trigons on the surface of a green diamond crystal

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Insight

26.05.2025

Throwback to GemGenève 2025

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Micrographs

14.05.2025

Mica crystals inside an emerald, Kafubu, Zambia.

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Insight

10.05.2025

GGTL Laboratories Switzerland at GemGenève: Thank You for Stopping By!

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Insight

01.05.2025

DFI V3: the tool for identifying synthetic diamonds – on display at GemGenève

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Micrographs

01.05.2025

Disordered carbon in cryptocrystalline fuchsite from Ya'an, Sichuan, China

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Insight

01.05.2025

Discover the new D-Tect V2 at GemGenève – Booth L11

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Micrographs

23.04.2025

Cultured pearls seen under X-rays

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