17. Nov IGC 2025 Effects of Gamma Irradiation on Corundum: Towards a Potential Detection Method Hao A.O. Wang, Markus Wälle, Vladimir Hutanu, Xiaosong Li, Michael S. Krzemnicki Download Pdf Treatments
17. Nov IGC 2025 Hurlbutite from Myanmar A crystal of the very rare mineral hurlbutite originating from Myanmar (without further locality det 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
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
