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

Novel cultured pearls with ceramic nucleus and possible cause of their strong luster

Yan Li, Qing Su

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Pearl
17. Nov
IGC 2025
Gemological Characteristics of New Transparent Brown Sapphire

A newly observed variety of faceted transparent brown sapphire has recently entered the gem market,

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Laurent Cartier
17. Nov
IGC 2025
Gems in Hellenistic and Roman Jewellery of Northern Greece: An investigation from the Collections of the Archaeological Museum of Thessaloniki, Greece

This study presents the results of an interdisciplinary archaeogemological investigation focusing on

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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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