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8.20 ctw Black Spinel Gemstones, Spinel Gems in Round Rose-Cut Shape for Sale.
Photos are of Actual Products for Sale
8.20 ctw Black Spinel Stones, Natural Spinel in Round Rose-Cut Shape for Sale Spinel Gemstones in 10 mm (calibrated) Size for Sale, Spinel Stones in Black Color

8.20ct Natural Black Spinel, Round Cut, 10.10 mm

9.6 out of 10
See Bizrate Ratings for GemSelect
Product ID: 426793
Type: Spinel
Weight: 8.20 ct (total) 2 gems
avg. 4.10 ct
Size: 10 mm calibrated
Size: 10.1 mm
Exact Size: 10.10 x 4.20 mm
Diameter x Depth
Shape: Round Rose-Cut
Color: Black
Clarity: Opaque
Treatment: Untreated
Origin: Thailand
Content: 2 pcs
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  • Natural certified gemstones

    Gemstone Laboratories
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  • 30-day risk free return policy

$
37.88
Item in Stock
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Product Description

These are 8.20 carat natural black Spinel gems, 2 pcs in round shape with an exact size of 10.10 mm x 4.20 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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GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

I needed a very specific color of tourmaline and Gem Select had it. I had to get the client to agree and then ordered the stone. It arrived better than pictured and we all were very happy.

Posted By Tim W in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Great prices!!! High quality gemstones.

Posted By Ricky in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

GemSelect is always my first choice for purchasing gemstones. The fact that the gems are always exactly as described and pictured on the website has earned my trust many times over. Even when I don't buy, I still love browsing all the beautiful stones. My new favorites are the bright green Tsavorites!

Posted By Lkcisneros in March, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

It was great!

Posted By Annie in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the product and the details about each of them.

Posted By Love It! in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Will know more once order received

Posted By Jim in September, 2025
Source: Bizrate
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