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HomeIGC 2025Challenges in the Detection of Ruby and Sapphire Treatment in the Thai Market
17. Nov
IGC 2025

Challenges in the Detection of Ruby and Sapphire Treatment in the Thai Market

Supparat Promwongnan, Wilawan Atichat, Cheewaporn Suphan, Wassana Chongraktrakul, and Visut Pisutha-Arnond
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RubySapphireTreatments
17. Nov
IGC 2025
Pink-orange gem quality euclase from Bahia, Brazil

Euclase, monoclinic crystal system—is a seldomly occurring mineral and with a Mohs hardness of 7 a

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Elodie
17. Nov
IGC 2025
Hessonite garnet from Angul district of Odisha, India

This study describes hessonite (Fe-bearing variety of grossular garnet), found in the Birlamunda vil

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Elodie
17. Nov
IGC 2025
Modern Cultivation of Freshwater Pearls in China: Advances in Materials, Technique

This presentation explores the modern advancements in freshwater pearl cultivation in China, focusin

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Laurent Cartier

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Age dating Diamond Emerald Gemmology Geochemistry IGC Jade Organics Origins Other Gemstones Pearl Ruby Sapphire Spinel Synthetics Tourmaline Treatments

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