6 pcs (无保留)-(浅)天蓝色 黄宝石 - 22.67 ct
编号 82562581
1 pcs [伦敦](深蓝) 黄宝石 - 17.47 ct
编号 82562581
1 pcs [伦敦](深蓝) 黄宝石 - 17.47 ct
Algt Colored Stone Identification Report # 33115272
Report Date: 16 January, 2024
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Identification
Species .......................................................................................................... Natural Topaz
Variety .................................................................................................................. Blue Topaz
Description
Shape & Cutting Style .................................................................. Triangle, Mixed Cut
Measurements .................................................................. 16.18 X 16.14 X 10.62 Mm
Carat Weight ................................................................................................... 17.47 Carat
Color ....................................................................................................................... Deep Blue
Transparency .................................................................................................. Transparent
Additional Grading Characteristics
Trade Color Name ....................................................................................... London Blue
Comments
Blue Topaz Is Commonly Enhanced By Irradiation And/or Heating To Improve
Its Color.
There Is Currently No Scientific Method Available To Determine
Whether This Gemstone Has Been Enhanced Or Not.