
巴西珠宝产业的崛起


从安第斯山脉(Andes )到潘塔纳尔(Pantanál):寻找紫黄晶



钻石市场情绪继续提升
满怀对五月 JCK Las Vegas Show(拉斯维加斯 JCK 珠宝展)的期待,钻石生产商们表示,自一月起,市场情绪已大幅提升,这在很大程度上归功于来自美国零售商的好于预期的订单。


未告知的大颗 CVD 合成钻石样品 (英语)
In mid-2012, one of the international diamond grading laboratories in Antwerp reported undisclosed CVD synthetic diamonds, causing a stir in the diamond industry.

含聚合氮杂质的 CVD 合成钻石 (英语)
Recently, an unusual 0.94 ct Fancy yellow-brown emerald cut was submitted to GIA for a synthetic diamond grading report. It contained a cloud of black needle-like inclusions occurring along a plane and showed weak green transmission with fiber-optic illumination.

巨大的 CVD 制造合成钻石 (英语)
The New York laboratory recently tested a 2.16 ct CVD synthetic from Scio Diamond Technology Corp., the largest specimen GIA has seen so far.

提交至孟买鉴定所的三颗 CVD 合成钻石 (英语)
The gemological and spectroscopic characteristics of these type IIa synthetic diamonds suggested that they experienced different growth and/or treatment histories.




马达加斯加 Didy 地区附近出现了大量的红宝石和蓝宝石
产自越南的宝石:新面貌 (英语)
This article describes the major gem materials of Vietnam, together with their new finds and recent production.

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