編號 100026439
已出售
最終出價
€ 40
14 小時前
沒有保留價 - 1 pcs 藍色 黃玉 - 21.53 ct - 國際寶石學院（International Gemological Institute (IGI)）
IGI Report Number: 746504148
• Species/Variety: Natural Topaz / Blue Topaz
• Shape & Cut: Octagonal Mixed Cut
• Weight: 21.53 ct
• Measurements: 16.23 × 16.11 × 11.63 mm
• Color & Transparency: Blue, Transparent
• Characteristics: Natural inclusions
• Comments: Blue topaz is commonly treated by irradiation followed by heat; indicative evidence of treatment is typically lacking.
• Optical & Physical Properties:
• Refractive Index: 1.619 – 1.627
• Birefringence: 0.008
• Optic Character: Biaxial
• Specific Gravity: 3.53
編號 100026439
已出售
沒有保留價 - 1 pcs 藍色 黃玉 - 21.53 ct - 國際寶石學院（International Gemological Institute (IGI)）
IGI Report Number: 746504148
• Species/Variety: Natural Topaz / Blue Topaz
• Shape & Cut: Octagonal Mixed Cut
• Weight: 21.53 ct
• Measurements: 16.23 × 16.11 × 11.63 mm
• Color & Transparency: Blue, Transparent
• Characteristics: Natural inclusions
• Comments: Blue topaz is commonly treated by irradiation followed by heat; indicative evidence of treatment is typically lacking.
• Optical & Physical Properties:
• Refractive Index: 1.619 – 1.627
• Birefringence: 0.008
• Optic Character: Biaxial
• Specific Gravity: 3.53
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