17. Nov IGC 2025 Novel cultured pearls with ceramic nucleus and possible cause of their strong luster Yan Li, Qing Su Download Pdf Pearl
17. Nov IGC 2025 The Importance and Methodology of Undertaking a Literature Search for Gemmological Research and Article Publishing Performing a literature search is a very important—but often neglected—part of doing gemmologica 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
17. Nov IGC 2025 Typomorphic features of tourmalines of the Malkhan pegmatite field from the Irkutyanka vein A.Y. Shelementyeva, Y.B. Shelementyev, O.V. Yarapova Download Pdf Read More Elodie
