沒有保留價 - 4 pcs 藍色, 紫色 坦桑石 - 3.98 ct - Antwerp Laboratory for Gemstone Testing (ALGT) - 强烈的紫色坦桑石

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Natural Tanzanite with ALGT Report
ALGT - Colors Stone Identification Report

Report Number ------------- 74605855
Report Date ------------- Sep 04, 2026

Species ------------- Natural Zoisite
Variety ------------- TANZANITE

Description ------------- 2 Loose Stone
Weight ------------- 3.98 Ct (4Pc)

Cut & Shape ------------- Oval, Mixed Cut
Color ------------- Intense Purplish Blue
Transparency ------------- Transparent

Comments :
Total 4 Stones. Average carat weight : 0.99 ct.

Tanzanite is commonly heated at low temperature to improve its color.
There is currently no scientific method available to determine whether this
gemstone has been enhanced or not.
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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.