（色彩細膩）- 瑞士 - [鮮豔的藍色] 黃玉 - 48.50 ct

Algt Colored Stone Report # 26292864
Report Date: 01 February, 2024
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Identification

Species .................................................................................. Natural Topaz
Variety ......................................................................................... Blue Topaz

Description

Shape & Cutting Style ............................................... Oval, Mixed Cut
Measurements ......................................... 24.63 X 18.70 X 12.63 Mm
Carat Weight ........................................................................... 48.50 Carat
Color ............................................................................................... 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.

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