01. Nov IGC 2025 HFSE-enriched sapphires of gem quality: A combined FTIR and trace element study and implications for heat treatment detection Michael S. Krzemnicki, Wei Zhou, Pierre Lefèvre, Markus Wälle, Hao Wang Download Pdf SapphireTreatments
24. Oct 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
01. Nov IGC 2025 A convincing glass imitation of larimar (pectolite) Larimar, a massive blue variety of the mineral pectolite, belonging to the wollastonite group of min Read More Elodie
01. 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 Read More Laurent Cartier