17. Nov IGC 2025 Morphologies and Surface Features of Diamond Samples from Southern Thailand Somruedee Sakkaravej, Thanapong Lhuaamporn, Pantaree Lomthong, Wilawan Atichat and Pornsawat Wathanakul Download Pdf DiamondOrigins
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 Read More 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 Read More 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 Read More Elodie