17. Nov IGC 2025 Hessonite garnet from Angul district of Odisha, India Jayshree Panjikar and Aatish Panjikar Download Pdf Other Gemstones
17. Nov IGC 2025 On the nature of blue rose quartz Over the past several years, the market for pink-coloured rose quartz has been augmented by variants Read More Laurent Cartier
17. Nov IGC 2025 Novel cultured pearls with ceramic nucleus and possible cause of their strong luster Cultured pearls with a ceramic nucleus (bead) represent a new type of saltwater cultured pearls that Read More Laurent Cartier
17. Nov IGC 2025 Shining light on “480 nm band” diamonds: Gemmological characteristics of an unusual group of diamonds with yellow and red luminescence Fancy colour diamonds that derive their colour from nitro- gen-related defects (such as N3/N2 center Read More Elodie