没有保留价 - 1 pcs 蓝色, 紫色 坦桑石 - 1.29 ct - 安特卫普宝石检测实验室（ALGT）

*No additional VAT or import duties for bidders within the EU*

极佳的坦桑石宝石，适合珠宝或投资级别。
Full physical ALGT Certificate included.

*Combined shipping — If you win multiple stones, pay one, and message to combine the rest.*

识别信息
Species __________________________ Natural Zoisite
Variety __________________________ Tanzanite

描述
Shape & Cutting Style __________________ Oval, Mixed Cut
Measurements __________________________ 7.71 x 6.18 x 3.06 mm
Carat Weight ___________________________ 1.29 Carat
Color _________________________________ Purplish Blue
Transparency __________________________ Transparent

附加分级特征
Origin ________________________________ Tanzania

Origin determination is an expert opinion based on microscopic examination, spectroscopic features and chemical trace element analysis.

备注

坦桑石通常在低温下加热以改善颜色。
目前尚无科学方法能够确定该宝石是否经过增色处理。