17. 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
17. Nov IGC 2025 Hessonite garnet from Angul district of Odisha, India This study describes hessonite (Fe-bearing variety of grossular garnet), found in the Birlamunda vil Read More Elodie
17. Nov IGC 2025 Color Genesis Analysis and Characteristics for Origin Identification of Purple Jadeite Purple jadeite, renowned for its distinctive purple hues and rich cultural connotations, is highly a Read More Elodie
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 Read More Laurent Cartier