17. Nov IGC 2025 Low Temperature Heat Treatment of Madagascar Sapphire E. Billie Hughes and Rosey Perkins Download Pdf SapphireTreatments
17. Nov IGC 2025 An approach to understanding the factors in the emerald enhancement clarity grading system used at CDTECGemlab Emerald is the green variety of beryl, with its distinctive color resulting from trace amounts of ch Read More Elodie
17. Nov IGC 2025 Found, Lost, and Found Again: The Geological and Gemological Significance of the Salininha Emerald Deposit, Brazil The Salininha emerald deposit located in the municipality of Pilão Arcado, Bahia State, represents Read More Elodie
17. Nov IGC 2025 Effects of Gamma Irradiation on Corundum: Towards a Potential Detection Method Corundum, encompassing the highly prized ruby and sapphire varieties, stands as a cornerstone of the Read More Elodie
