编号 100644145

没有保留价 - 12 pcs 紫罗兰色, 蓝色 坦桑石 - 3.06 ct - 安特卫普宝石检测实验室(ALGT)
编号 100644145

没有保留价 - 12 pcs 紫罗兰色, 蓝色 坦桑石 - 3.06 ct - 安特卫普宝石检测实验室(ALGT)
ALGT COLORED STONE IDENTIFICATION REPORT
IDENTIFICATION
Species ......................................................................................................... Natural Zoisite
Variety ..................................................................................................................... Tanzanite
DESCRIPTION
Shape & Cutting Style .................................................... Round Brilliant, Mixed Cut
Total Carat Weight .......................................................................................... 3.06 Carat
Color .............................................................. Violetish Blue to Intense Purplish Blue
Transparency .................................................................................................. Transparent
ADDITIONAL GRADING CHARACTERISTICS
Origin ......................................................................................................................... Tanzania
Origin determination is an expert opinion based on microscopic examination, spectroscopic features and
chemical trace element analysis.
COMMENTS
Total 12 stones. Average carat weight: 0.25 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.
05 November, 2025
89230082
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