17. Nov IGC 2025 The Importance and Methodology of Undertaking a Literature Search for Gemmological Research and Article Publishing Brendan M. Laurs Download Pdf Gemmology
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 Padparadscha Sapphire & heat treatment In 2018 the Padparadscha engagement ring of Princess Eugenie (Figure 1), the niece of the king, gave Read More Laurent Cartier
17. Nov IGC 2025 Color Genesis Analysis and Characteristics for Origin Identification of Purple Jadeite Purple jadeite, renowned for its distinctive purple hues and rich cultural connotations, is highly a Read More Elodie