17. Nov IGC 2025 Advancing Fei Cui Origin Authentication: A comparison of green fei cui from Myanmar, Guatemala, Italy and Russia Shang-I (Edward) Liu, Ka-Yi (Angela) Man, Montira Seneewong-Na-Ayutthaya, Bhuwadol Wanthanachaisaeng Download Pdf Jade
17. Nov IGC 2025 Amber from the Thanbaya Gaing Coal Mine, Minbu Township, Magwe Region, Myanmar Amber was recently discovered by local coal miners at the Thanbaya Gaing Coal mine located 6.5 km no Read More Laurent Cartier
17. Nov IGC 2025 Spinel from Sri Lanka – An update Most of the spinels are found in shades of red to purple. Colourless, green and cobalt bearing varie Read More Elodie
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