17. Nov IGC 2025 Spinel from Sri Lanka – An update Gamini Zoysa, Dietmar Schwarz, Arunas Kleismantas Download Pdf Other Gemstones
17. Nov IGC 2025 Gem zircon and sapphire age dating and application of origin determination: A study from New England sapphire fields, New South Wales, Australia Ahmadjan Abduryim, Frederick Lin Sutherland, Terry Coldham, Elena Belousova Download Pdf 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
17. Nov IGC 2025 Pink-orange gem quality euclase from Bahia, Brazil Euclase, monoclinic crystal system—is a seldomly occurring mineral and with a Mohs hardness of 7 a Read More Elodie