卡庞拓帕石矿床(巴西米纳斯吉拉斯欧鲁普雷图) (英语)
This article examines the history of the Ouro Preto district as well as the geology of the area and occurrence of the topaz.
圣卡洛斯橄榄石 (英语)
Marketed throughout the world, San Carlos material is often confused with, and sold as, peridot from localities that are better known and documented.
哥伦比亚的祖母绿 (英语)
A comprehensive review of the history and geology of Colombian emeralds together with descriptions of some of the most famous gems to come from this locality.
GIA全年提供助学奖学金
GIA’s industry-leading and globally-recognized diploma and certificate programs educate professionals with the skills needed for success in the gem and jewelry industry.

钻石中非同寻常的哑铃状内含物 (英语)
Examination of a 0.40 ct near-colorless round brilliant diamond with a large inclusion resembling a dumbbell

Sapphire Rush Near Ambatondrazaka, Madagascar (英语)
A newly found deposit of sapphire in Madagascar is explored.



红外显微镜的应用
马达加斯加 Didy 地区附近出现了大量的红宝石和蓝宝石
GIA 科学家评估稀世珍罕钻石
镶工提示 #3:探索 CAD CAM 的益处
夏季时尚理念:彩色俏皮珠宝


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