17. Nov IGC 2025 Studying renowned fancy color diamonds in museum collections: the case of the Winston Red Gaillou E., Farfan G.A., D’Haenens-Johansson U.F.S., Persaud S., Feather II R.C., Towbin W.H., Jones D.C. Download Pdf Diamond
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 Identification of melee size synthetic coloured diamond for jewellery Synthesis methods to produce large and high-quality dia- mond for jewellery have been improved over Read More Laurent Cartier
17. Nov IGC 2025 Bertrandite in Emeralds Over the past few years we have been seeing more and more lower quality stones in the lab. The reaso Read More Laurent Cartier