没有保留价 - 1 pcs 紫色, 紫罗兰色紫水晶 - 8.63 ct - 国际宝石研究院（IGI）

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由Ghene Menezes精选

IGI Report Number: 746504184 • Species/Variety: Natural Quartz / Amethyst • Shape & Cut: Round Mixed Cut • Weight: 8.63 ct • Measurements: 13.10 – 13.59 × 10.48 mm • Color & Transparency: Violet, Transparent • Characteristics: Natural inclusions • Comments: Amethysts are occasionally heated, as part of their normal fashioning process, to enhance the color. • Optical & Physical Properties: • Refractive Index: 1.544 – 1.553 • Birefringence: 0.009 • Optic Character: Uniaxial • Specific Gravity: 2.66

编号 99382345

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没有保留价 - 1 pcs 紫色, 紫罗兰色紫水晶 - 8.63 ct - 国际宝石研究院（IGI）

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IGI Report Number: 746504184
• Species/Variety: Natural Quartz / Amethyst
• Shape & Cut: Round Mixed Cut
• Weight: 8.63 ct
• Measurements: 13.10 – 13.59 × 10.48 mm
• Color & Transparency: Violet, Transparent
• Characteristics: Natural inclusions
• Comments: Amethysts are occasionally heated, as part of their normal fashioning process, to enhance the color.
• Optical & Physical Properties:
• Refractive Index: 1.544 – 1.553
• Birefringence: 0.009
• Optic Character: Uniaxial
• Specific Gravity: 2.66