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几个世纪以来，珠宝设计师们都对蝴蝶情有独钟，皆因它有着令人惊叹的美丽， 还因为“飞舞的花朵”令人浮想联翩。 蝴蝶是转变的普遍象征。

Melee diamonds can be efficiently screened for synthesis and treatment using infrared absorption spectroscopy, DiamondView imaging, and microscopy.

Describes the extremely rare polished pink diamonds from Australia’s Argyle mine that have been sold for 30 years through invitation-only tenders.

Review of Yvonne J. Markowitz and Denise Doxey's Jewels of Ancient Nubia.

Although this stone bore some superficial resemblance to moissanite, its gemological properties were consistent with HPHT synthetic diamond.

一家大型的宝石矿业公司寻求改变世界收购和销售优质宝石的方式。

珠宝商和宝石学家使用一组特定的术语来描述已打磨钻石的各个部分。 形状或比例的某些测量数据最终会影响圆形明亮式钻石的切工等级。

加入 GIA 在赞比亚 Kagem（卡棋穆）的祖母绿矿实地团队，了解可能是世界最大的祖母绿矿的相关信息。 这一矿山的开发为有色宝石行业带来彻底性变革。

和 GIA 一起，前往莫桑比克的蒙特普埃兹红宝石矿场，探寻新世纪发现的最重大的红宝石矿藏。

Overview and commentary on the 2013 The Journal of Gemmology article “Peñas Blancas: An Historic Colombian Emerald Mine."

Review of Ronald McIntosh and Warren Anderson's Kentucky Agate: State Rock and Mineral Treasure of the Commonwealth.

Examination of a CVD synthetic diamond with an unusual pattern of growth dislocations that resemble natural inclusions.