沒有保留價 - 1 pcs 藍色 黃玉 - 53.61 ct - Antwerp Laboratory for Gemstone Testing (ALGT) - 瑞士蓝

Species .......................................................................................................... Natural Topaz
Variety .................................................................................................................. Blue Topaz
DESCRIPTION
Shape & Cutting Style ......................................................................... Oval, Mixed Cut
Measurements .................................................................. 28.67 x 17.81 x 12.37 mm
Carat Weight ................................................................................................... 53.61 Carat
Color ....................................................................................................... Intense/Vivid Blue
Transparency .................................................................................................. Transparent


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.
27 August, 2026
25591277