'Sugar' Nephrite from the Altun Mountains, Xinjiang, China
Nephrite has a long history and profound culturalsignificance in China, along with a vast consumer market. In July 2025,...

经同行评审的研究成果、学术会议演讲及学术贡献,持续推动宝石学科学与实践的发展。
The study of inclusions within gem materials provides important insights into their crystallisation processes and the geological conditions of their formation. Recently, Guild Gem Laboratories gemmolo...
Nephrite has a long history and profound culturalsignificance in China, along with a vast consumer market. In July 2025,...
The study of inclusions within gem materials provides important insights into their crystallisation processes and the ge...
A pink sapphire weighing over 20 ct was recently submitted to Guild Gem Laboratories, and it presented a particularly ch...
记录宝石学知识演进、新型处理方法、新兴产地及实地研究成果的年度刊物。
来自GUILD全球持续实地作业的影像记录——从矿区到加工中心,再到市场,真实呈现宝石学知识诞生的现场。





