沒有保留價 - 1 pcs 藍色, 紫羅蘭色 坦桑石 - 3.84 ct - 國際寶石學院（International Gemological Institute (IGI)） - 天然坦桑石

无底价

NATURAL TANZANITE WITH FULL - IGI - INTERNATIONAL GEMOLOGICAL INSTITUTE

Report Number ------------- 783627823
Report Date ------------- 2026年3月19日
Species ------------- Natural Zoisite
Variety ------------- TANZANITE

Description ------------- 1 颗散珠
Weight ------------- 3.84 Ct
Measurements ------------- 11.92 x 8.29 x 4.79 mm
Cut & Shape ------------- Bullet Step Cut

Color ------------- Bluish Violet
Clarity ------------- Transparent

Comment ------------- Tanzanite 常见通过热处理得到增强，通常缺乏指示性证据。

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All photos are magnifications, taken with a macro lens with the proper exposure, and are meant to honestly and correctly show any imperfections in the stone.

Needless to say, these are much less visible to the naked eye.