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HomeIGC 2025Low Temperature Heat Treatment of Madagascar Sapphire
17. Nov
IGC 2025

Low Temperature Heat Treatment of Madagascar Sapphire

E. Billie Hughes and Rosey Perkins

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SapphireTreatments
17. Nov
IGC 2025
Morphologies and Surface Features of Diamond Samples from Southern Thailand

In 1955, the first report on Thai diamond was made by Dr. Payome Aranyakanon, a renowned tin explora

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Laurent Cartier
17. Nov
IGC 2025
Nitrogen aggregates in yellow HPHT and CVD synthetic diamonds

Yuri Shelementyev, Galina Kriulina, Olga Yarapova, Viktor Vins, and Alexander Stolyarevich

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Laurent Cartier
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

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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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