没有保留价 - 16 pcs 蓝色坦桑石 - 4.06 ct - 安特卫普宝石检测实验室（ALGT）

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由Alberto Fidalgo精选

ALGT COLORED STONE IDENTIFICATION REPORT IDENTIFICATION Species ......................................................................................................... Natural Zoisite Variety ..................................................................................................................... Tanzanite DESCRIPTION Shape & Cutting Style ..................................................................... Round, Mixed Cut Total Carat Weight .......................................................................................... 4.06 Carat Color .................................................................... Light Purplish Blue to 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 16 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. 19 November, 2025 85887375

编号 100407048

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没有保留价 - 16 pcs 蓝色坦桑石 - 4.06 ct - 安特卫普宝石检测实验室（ALGT）

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ALGT COLORED STONE IDENTIFICATION REPORT
IDENTIFICATION
Species ......................................................................................................... Natural Zoisite
Variety ..................................................................................................................... Tanzanite
DESCRIPTION
Shape & Cutting Style ..................................................................... Round, Mixed Cut
Total Carat Weight .......................................................................................... 4.06 Carat
Color .................................................................... Light Purplish Blue to 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 16 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.
19 November, 2025
85887375