17. Nov IGC 2025 Gemological Characteristics of New Transparent Brown Sapphire Sutas Singbamroong, Tasnara Sripoonjan, Montira Seneewong Na Ayutthaya, Pukkapon Piantumdee, Tanyawit Sutipanya, Khaled Hussein and Nazar Ahmed Download Pdf GemmologySapphire
17. Nov IGC 2025 Pink to Red and Violet Diamonds from the Argyle Mine, Australia: Properties, Color Origin and Latest Research Results The Argyle Mine was by very far the largest producer of pink to red diamonds worldwide and the only Read More Laurent Cartier
17. Nov IGC 2025 Noble gas in corundum: interests in gemology Noble gases —elements of the last column of the periodic table—are chemically defined by their f Read More Elodie
17. Nov IGC 2025 Amber and its treatments: A New Baltic Amber Classification Chart This paper aims to present the history of the modification of Baltic amber (succinite), and particul Read More Elodie