沒有保留價 - 1 pcs 藍色黃玉 - 34.61 ct - Antwerp Laboratory for Gemstone Testing (ALGT) - 瑞士蓝

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由Alberto Fidalgo精選

ALGT COLORED STONE IDENTIFICATION REPORT IDENTIFICATION Species .......................................................................................................... Natural Topaz Variety .................................................................................................................. Blue Topaz DESCRIPTION Shape & Cutting Style .................................................................... Oval, Concave Cut Measurements .................................................................. 23.14 x 16.78 x 12.10 mm Carat Weight ................................................................................................... 34.61 Carat Color ....................................................................................................... Intense/Vivid Blue Transparency .................................................................................................. Transparent ADDITIONAL GRADING CHARACTERISTICS Trade Color Name ............................................................................................ Swiss Blue Color Quality Grade .......................................................................... Fine Color Quality 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. 19 June, 2026 47042788

編號 105611407

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沒有保留價 - 1 pcs 藍色黃玉 - 34.61 ct - Antwerp Laboratory for Gemstone Testing (ALGT) - 瑞士蓝

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ALGT COLORED STONE IDENTIFICATION REPORT
IDENTIFICATION
Species .......................................................................................................... Natural Topaz
Variety .................................................................................................................. Blue Topaz
DESCRIPTION
Shape & Cutting Style .................................................................... Oval, Concave Cut
Measurements .................................................................. 23.14 x 16.78 x 12.10 mm
Carat Weight ................................................................................................... 34.61 Carat
Color ....................................................................................................... Intense/Vivid Blue
Transparency .................................................................................................. Transparent
ADDITIONAL GRADING CHARACTERISTICS
Trade Color Name ............................................................................................ Swiss Blue
Color Quality Grade .......................................................................... Fine Color Quality
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.
19 June, 2026
47042788