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 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
17. Nov IGC 2025 Geographic Origin Determination of Natural Yellow Sapphires: The Preliminary Study Determining the geographic origin of yellow sapphires plays a critical role in the gem trade, as ori Read More Laurent Cartier
17. Nov IGC 2025 History of Garnet Mining and Cutting in the Austro-Hungarian Monarchy Bohemian garnets, i.e., chromium-bearing pyropes, are found in several jewellery pieces from the Mig Read More Laurent Cartier