Research Article Search Results
A New Deposit of Gem-Quality Grandidierite in Madagascar (英语)
Reviews the properties of exceptionally pure grandidierite from a new source.
Sapphires from the Sutara Placer in the Russian Far East (英语)
Studies the formation and chemical composition of the largely unexamined alluvial sapphires from Russia’s Jewish Autonomous District.
The Color of Responsibility: Ethical Issues and Solutions in Colored Gemstones (英语)
Examines the challenges of ethical sourcing and production of colored stones, and what some industry leaders are doing to address the situation.
跟随 Rainier（雷尼尔）的步伐：契沃尔祖母绿矿之旅 (英语)
Chronicles the famed emerald source through the adventures of Peter W. Rainier, who directed the mine from 1926 to 1931 and restored its former glory.
俄罗斯宝石打造的法贝热哥萨克人像 (英语)
Hardstone figures of two Russian imperial bodyguards, commissioned in 1912 by Nicholas II, demonstrate the House of Fabergé’s meticulous detail and craftsmanship.
在加拿大北极地区开采钻石：戴维克矿 (英语)
Located near the Arctic Circle, Diavik is one of the world’s richest diamond deposits and a leader in sustainable mining.
Red Cordierite from Madagascar (英语)
The gemological properties of the first documented occurrence of red cordierite, from Madagascar, are examined.
Analysis of Yellow Diamond Melee for Color Treatment and Synthetics (英语)
A parcel revealed to contain natural, treated, and synthetic diamonds reinforces the importance of identification.
最大的蓝色高温高压合成钻石 (英语)
Analysis of a 5.03 ct HPHT-grown blue synthetic diamond, the largest ever examined by GIA.
Ring with a CVD Synthetic Melee Diamond (英语)
A round-cut specimen set in a ring is the first mounted CVD synthetic melee diamond identified by GIA.
Blue Sapphires From a New Deposit Near Andranondambo, Madagascar (英语)
A recent rush in Madagascar yields new sapphire production.
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