3 pcs (坦桑尼亚)-(紫蓝色) 坦桑石 - 2.54 ct
编号 83245185
(坦桑尼亚)- [(精细色彩质量)-(鲜艳/深紫蓝色) 坦桑石 - 2.31 ct
编号 83245185
(坦桑尼亚)- [(精细色彩质量)-(鲜艳/深紫蓝色) 坦桑石 - 2.31 ct
Algt Colored Stone Report # 70403473
Report Date: 02 February, 2024
============================================
Identification
Species ................................................................................ Natural Zoisite
Variety ............................................................................................ Tanzanite
Description
Shape & Cutting Style ............................................... Oval, Mixed Cut
Measurements ................................................. 9.86 X 7.81 X 4.62 Mm
Carat Weight ............................................................................. 2.31 Carat
Color ................................................................ Vivid/deep Violetish Blue
Transparency ......................................................................... Transparent
Additional Grading Characteristics
Color Quality Grade ................................................. Fine Color Quality
Suggested Origin ....................................................................... Tanzania
Comments
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.
============================================