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Home Gemstones Spinel
6.63 ctw Black Spinel Gemstones, Spinel Gems in Round Rose-Cut Shape for Sale.
Photos are of Actual Products for Sale
6.63 ctw Black Spinel Stones, Natural Spinel in Round Rose-Cut Shape for Sale Spinel Gemstones in 9 mm (calibrated) Size for Sale, Spinel Stones in Black Color

6.63ct Natural Black Spinel, Round Cut, 9.27 mm

9.7 out of 10
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Product ID: 553009
Type: Spinel
Weight: 6.63 ct (total) 2 gems
avg. 3.32 ct
Size: 9 mm calibrated
Size: 9.3 mm
Exact Size: 9.27 x 3.82 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 6.63 carat natural black Spinel gems, 2 pcs in round shape with an exact size of 9.27 mm x 3.82 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: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

Took a chance on purchasing my gemstones from Gemselect and was impressed. 10/10

Posted By KT in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very neat and to the point

Posted By Botha in March, 2026
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Overall Rating -> 10 star ratings

Easy to conduct search, good amount of stock to select from along with variety of prices.

Posted By Que in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

This is the first time I have used this site. I was dissatisfied with the quality of gems and supplies elsewhere and decided to try GemSelect. They are awesome! I was thrilled to see the variety and the great web performance. There was the ability to search for information as well as gems. Things like the clarity rating system and caret weight of the gems. I have always loved making things and I have just started to make jewelry as a business. However I have never made a ring before and have always wanted to. On GemSelect I was able to find good quality gems to use in my creations. I am so glad the website is so easy to use. Thank you GemSelect.

Posted By PickyShopper in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I found the filter options excellent. Yours was the third site I visited (asked chat got for reputable online sellers of loose gems) and the first I purchased from as I was able to easily find what I was looking for.

Posted By Kelly in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.

Posted By RenoRose in January, 2026
Source: Bizrate
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