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HomeIGC 2025Rubies from Greenland
17. Nov
IGC 2025

Rubies from Greenland

Vincent Pardieu

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Ruby
17. Nov
IGC 2025
Amber from the Thanbaya Gaing Coal Mine, Minbu Township, Magwe Region, Myanmar

Amber was recently discovered by local coal miners at the Thanbaya Gaing Coal mine located 6.5 km no

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Laurent Cartier
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
Geographic Origin Determination of Natural Yellow Sapphires: The Preliminary Study

Determining the geographic origin of yellow sapphires plays a critical role in the gem trade, as ori

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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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