沒有保留價 - 1 pcs 藍色 黃玉 - 41.83 ct - Antwerp Laboratory for Gemstone Testing (ALGT) - 瑞士蓝

ALGT COLORED STONE IDENTIFICATION REPORT
识别
Species .......................................................................................................... Natural Topaz
品种 .................................................................................................................. 天然托帕石
Variety .................................................................................................................. Blue Topaz
品系 .................................................................................................................. 蓝色托帕石
DESCRIPTION
描述
Shape & Cutting Style ......................................................................... Oval, Mixed Cut
形状与切割风格 ......................................................................... 椭圆形，混合切割
Measurements .................................................................. 24.00 x 18.44 x 11.08 mm
规格 .................................................................. 24.00 x 18.44 x 11.08 毫米
Carat Weight ................................................................................................... 41.83 Carat
克拉重量 ................................................................................................... 41.83 克拉
Color ....................................................................................................... Intense/Vivid Blue
颜色 ....................................................................................................... 强烈/鲜艳蓝色
Transparency .................................................................................................. Transparent
透明度 .................................................................................................. 透明
ADDITIONAL GRADING CHARACTERISTICS
额外分级特征
Trade Color Name ............................................................................................ Swiss Blue
贸易色名 ............................................................................................ 瑞士蓝
Color Quality Grade .......................................................................... Fine Color Quality
色彩质量等级 .......................................................................... 优良色彩质量
COMMENTS
注释
Blue topaz is commonly enhanced by irradiation and/or heating to improve
其颜色通常通过辐照和/或加热来增强
its color. There is currently no scientific method available to determine
其颜色。当前没有已知的科学方法能确定
whether this gemstone has been enhanced or not.
该宝石是否经过增强，目前无法判定。
27 August, 2026
2026年8月27日
79399204