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 Maria Nikopoulou, Stefanos Karampelas, Evangelia Tsangaraki, Lambrini Papadopoulou, Christos Katsifas, Ioannis Nazlis, Vasilios Melfos and Nikolaos Kantiranis Download Pdf Gemmology
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 Noble gas in corundum: interests in gemology Noble gases —elements of the last column of the periodic table—are chemically defined by their f Read More Elodie
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