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A fine example of the in vogue black Spinel, mixed cut round shape which looks like a black diamond but at a fraction of the price.
Unusual and striking color; this is perfect for your one-of-a-kind solitaire ring.
Approximate dimensions are as follows; 8.5 mm long x 8 mm wide x 5 mm deep, and weighs is 2.43ct.
This Spinel comes with a lab identification / origin report.
Spinel wasn\'t recognized as a separate gem species until 1587. The huge ruby in the English crown is in fact a Spinel.
More recently the price of nice Spinel is fetching similar prices as natural Sapphire. Spinel not only has the color but also more fire than a sapphire.
Gem reports Identification results:
Chemistry; MgAl2O4
Crystallography; Isometric.
Refractive Index; 1.712 - 1.717, normal. Reds may go up to 1.735 and blues to 1.747.
Hardness; 7.5 - 8.
Specific Gravity; 3.58 - 3.61.
Cleavage; None.
Heat Sensitive; No.
Wear ability; Excellent.
Special Care Instructions; None.
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