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Geographic Origin Determination of Blue Sapphire (英语)
In some cases, the value of a sapphire depends strongly on its geographic origin. This article details the origin data GIA has collected for blue sapphire and describes its methodology for using the data in geographic origin determination.
野外宝石学:建立研究收藏并了解宝石矿床的形成
自2008年以来,GIA已在六大洲开展了90多次实地考察,积累了超过22,000件彩色宝石参考样品。这些来源明确的彩色宝石藏品为GIA的地理产地鉴定研究提供了有力支持。
A Review of Analytical Methods Used in Geographic Origin Determination of Gemstones (英语)
Geographic origin determination relies on a combination of gemological observations and advanced analytical tools. This contribution reviews the analytical methods commonly used to establish origin.
合成钻石的特征 (英语)
Presents a visual guide to the growth processes and major gemological spectroscopic features of synthetic diamonds.
蒙大纳州约戈峡谷蓝宝石的宝石学特征 (英语)
A look at the mining and distinguishing characteristics of this naturally vibrant blue sapphire.
针对产自 Baw Mar 矿(缅甸摩谷)的蓝色蓝宝石的深入宝石学研究
GIA 实地宝石学家在 2013 年、2014 年和 2015 年考察过 Baw Mar 的运营。 在本次研究中,我们分析了在两个独立考察期间收集的样本。
Trapiche-Type Sapphire from Tasmania (英语)
A rare Tasmanian trapiche-type sapphire, found during a field expedition, is examined.
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.






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