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

Pink to Red and Violet Diamonds from the Argyle Mine, Australia: Properties, Color Origin and Latest Research Results

Thomas Hainschwang

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DiamondOrigins
17. Nov
IGC 2025
History of Garnet Mining and Cutting in the Austro-Hungarian Monarchy

Bohemian garnets, i.e., chromium-bearing pyropes, are found in several jewellery pieces from the Mig

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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
17. Nov
IGC 2025
Blue sapphire from Malacacheta of Minas Gerais, Brazil

Malacacheta, located in Minas Gerais, Brazil, is renowned for its alexandrite deposits and com-plex

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Laurent Cartier

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