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HomeIGC 2025Pink-orange gem quality euclase from Bahia, Brazil
17. Nov
IGC 2025

Pink-orange gem quality euclase from Bahia, Brazil

Lætitia Gilles-Guéry

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Other Gemstones
17. Nov
IGC 2025
Pink to Red and Violet Diamonds from the Argyle Mine, Australia: Properties, Color Origin and Latest Research Results

The Argyle Mine was by very far the largest producer of pink to red diamonds worldwide and the only

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Laurent Cartier
17. Nov
IGC 2025
Novel cultured pearls with ceramic nucleus and possible cause of their strong luster

Cultured pearls with a ceramic nucleus (bead) represent a new type of saltwater cultured pearls that

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

One of the challenges facing gemologists today is the detec- tion of low temperature (below 1200°C)

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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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