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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
Dyed purple Jade (Lavender jade or purple “Fei Cui”) from Mandalay’s jade market, Myanmar

Jade or "Fei Cui" are trade names for a stone that typi- cally contains only one or more main minera

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Elodie
17. Nov
IGC 2025
Diamonds from Than Lwin River near Mong Hsu, Myanmar

Sixteen rough diamonds were acquired in 2023 by co-author TTS from a gem dealer linked to Mong Hsu,

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Elodie
17. Nov
IGC 2025
Gems in Greece: Geology, mineralogy and crystallizing environment

In the accretionary Hellenides Orogen, gems occur in various rock types of mainly four tectonometamo

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Laurent Cartier

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

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