瑞士-【深藍色】 黃玉 - 24.74 ct
編號 83245265
1 pcs 【深藍色】-瑞士 黃玉 - 30.81 ct
編號 83245265
1 pcs 【深藍色】-瑞士 黃玉 - 30.81 ct
Algt Colored Stone Report # 17902113
Report Date: 16 January, 2024
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Identification
Species .................................................................................. Natural Topaz
Variety ......................................................................................... Blue Topaz
Description
Shape & Cutting Style ............................................... Oval, Mixed Cut
Measurements ......................................... 19.27 x 15.57 x 12.00 mm
Carat Weight ........................................................................... 30.81 Carat
Color .......................................................................................... Intense Blue
Transparency ......................................................................... Transparent
Additional Grading Characteristics
Trade Color Name ................................................................... Swiss 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.