No reserve price - 1 pcs Blue Topaz - 39.77 ct - Antwerp Laboratory for Gemstone Testing (ALGT) - Swiss Blue

Expert

Selected by Ghene Menezes

ALGT COLORED STONE IDENTIFICATION REPORT IDENTIFICATION Species .......................................................................................................... Natural Topaz Variety .................................................................................................................. Blue Topaz DESCRIPTION Shape & Cutting Style .................................................................... Oval, Concave Cut Measurements .................................................................. 25.02 x 18.00 x 12.36 mm Carat Weight ................................................................................................... 39.77 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. 25 September, 2026 32749829

No. 107444067

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No reserve price - 1 pcs Blue Topaz - 39.77 ct - Antwerp Laboratory for Gemstone Testing (ALGT) - Swiss Blue

ALGT COLORED STONE IDENTIFICATION REPORT
IDENTIFICATION
Species .......................................................................................................... Natural Topaz
Variety .................................................................................................................. Blue Topaz
DESCRIPTION
Shape & Cutting Style .................................................................... Oval, Concave Cut
Measurements .................................................................. 25.02 x 18.00 x 12.36 mm
Carat Weight ................................................................................................... 39.77 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.
25 September, 2026
32749829

Final bid

€ 42

No reserve price

Expert

Selected by Ghene Menezes

Retail Estimate € 650 - € 800

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