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- BLUE UNHEAT SAPPHIRE (NEELAM)
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- Gemstone: Natural Blue Sapphire Treatment: Unheated / No Heat Weight: 7.64 Carats Shape & Cut: Oval Heart Dimensions: 11.98 × 9.36 × 7.53 mm Color: Natural Blue Transparency: Transparent Origin: Madagascar Certification: On request Ratti (Approx.): 8.40 Ratti Specific Gravity: ~3.95 – 4.03 Refractive Index: 1.76 – 1.78 Luster: Vitreous
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