Cobalt Blue Spinel 2.57 cts website

Cobalt Blue Spinel 2.57 cts

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Product Details

Stone type: Spinel
Weight: 2.57 cts
Dimension:  8.79 x 6.93 x 5.85 mm
Color:  Cobalt Blue
Origin : Tanzania
Shape & Cut: Oval,  Yavorskyy  cut  
Certified:  GRS

One of the most prized varieties of Spinel, this Cobalt Blue Gem originates from Tanzania. It features a deep and exquisite legendary blue tone, which is highly desired by colored gems hunters all around the world. Faceted into an oval shape, Yavorskyy cut, this Natural Cobalt Spinel displays remarkable luster and brilliance. Its size of over one carat is a rare treasure from Mother Earth - this precious gem weighs almost 3 carats and has a proper certification.

Treatment: Unheated and Untreated (No Indications Observed)
Refractive Index: 1.712-1.782
Hardness: 7.5-8
Specific Gravity: 3.6
Optical properties: Singly refractive
Chemical formula: MgAl₂O₄
Shipment from: Thailand
Return Policy: 3 Day Money-Back Return*


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