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HomeIGC 2025On the nature of blue rose quartz
17. Nov
IGC 2025

On the nature of blue rose quartz

Karen E. Fox, Andrew M. McDonald, Chris Yakymchuk
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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
An approach to understanding the factors in the emerald enhancement clarity grading system used at CDTECGemlab

Emerald is the green variety of beryl, with its distinctive color resulting from trace amounts of ch

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Elodie
17. Nov
IGC 2025
HFSE-enriched sapphires of gem quality: A combined FTIR and trace element study and implications for heat treatment detection

Gem-quality sapphires containing ‘exotic’ elements such as Sn, Nb, Zr, Ta, W, are of special int

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Elodie

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