17. Nov IGC 2025 Zoisite and its many color Clemens Schwarzinger, Steve Ulatowski, George R. Rossman Download Pdf Other Gemstones
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 Study of “amethysts” from the French Crown Jewels Stefanos Karampelas, Eloïse Gaillou, Annabelle Herreweghe, Ugo Hennebois, Farida Maouche, Romain Bo Read More Laurent Cartier
17. Nov IGC 2025 Rubies from Greenland Gemology is traditionally practiced in laboratories, focused on identifying and analyzing gemstones. Read More Laurent Cartier