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Home Gemstones Spinel
13.75 ctw Black Spinel Gemstones, Spinel Gems in Round Rose-Cut Shape for Sale.
Photos are of Actual Products for Sale
13.75 ctw Black Spinel Stones, Natural Spinel in Round Rose-Cut Shape for Sale Spinel Gemstones in 12 mm (calibrated) Size for Sale, Spinel Stones in Black Color

13.75ct Natural Black Spinel, Round Cut, 11.78 mm

9.7 out of 10
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Product ID: 438492
Type: Spinel
Weight: 13.75 ct (total) 2 gems
avg. 6.88 ct
Size: 12 mm calibrated
Size: 11.8 mm
Exact Size: 11.78 x 4.80 mm
Diameter x Depth
Shape: Round Rose-Cut
Color: Black
Clarity: Opaque
Treatment: Untreated
Origin: Thailand
Content: 2 pcs
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Product Description

These are 13.75 carat natural black Spinel gems, 2 pcs in round shape with an exact size of 11.78 mm x 4.80 mm (avg.). These loose Spinel gemstones were mined in Thailand and their clarity is Opaque. No treatment has been applied on these natural Spinel stones

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Overall Rating -> 10 star ratings

I was able to find what I wanted very easily!

Posted By Lenny in January, 2026
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Overall Rating -> 10 star ratings

this site is awesome. I was able to look at the products think about purchasing and come back and find the same products. With the amount of inventory gem select has. Its awesome to be able to filter the way that they allow you too.

Posted By Tommyp in November, 2025
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Overall Rating -> 10 star ratings

Good, hope gem quality is good and genuine

Posted By Varun in May, 2026
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Overall Rating -> 10 star ratings

Love beauty, color, quality, and price of these gems. Personal projects and will come here soon and everytime.

Posted By Darkstar in June, 2025
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Always get a nice gemstone. Just like the picture. Never disappointed

Posted By Ron T in June, 2026
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Overall Rating -> 10 star ratings

I was looking for high-quality amethyst on this site, and I was able to compare size, color, and weight in detail before making a purchase.

Posted By Atsuhisa in January, 2026
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