藍色尖晶石 - 3.01 ct - Gem research Swiss Lab (GRS) - GRS Cobalt Spinel，3.01克拉

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Gemstone: Natural cobalt spinel Weight: 3.01 ct Dimensions: 8.01 × 9.03 × 5.64 mm Shape & Cut: Heart-shaped, mixed brilliant/step cut Colour: Medium to deep blue, cobalt-bearing Transparency: Transparent Clarity: Slight inclusions (visible under magnification, minor impact on appearance) Lustre: Vitreous Treatment: No indication of thermal treatment Origin: Tanzania Condition: Natural gemstone with typical internal inclusions; no chips or cracks observed Certification: Accompanied by GRS (GemResearch Swisslab) report Shipping: Secure and insured shipment with tracking

編號 101512072

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藍色尖晶石 - 3.01 ct - Gem research Swiss Lab (GRS) - GRS Cobalt Spinel，3.01克拉

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Gemstone: Natural cobalt spinel
Weight: 3.01 ct
Dimensions: 8.01 × 9.03 × 5.64 mm
Shape & Cut: Heart-shaped, mixed brilliant/step cut
Colour: Medium to deep blue, cobalt-bearing
Transparency: Transparent
Clarity: Slight inclusions (visible under magnification, minor impact on appearance)
Lustre: Vitreous
Treatment: No indication of thermal treatment
Origin: Tanzania
Condition: Natural gemstone with typical internal inclusions; no chips or cracks observed
Certification: Accompanied by GRS (GemResearch Swisslab) report
Shipping: Secure and insured shipment with tracking