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18.25 ctw Black Spinel Gemstones, Spinel Gems in Trillion Rose-Cut Shape for Sale.
Photos are of Actual Products for Sale
18.25 ctw Black Spinel Stones, Natural Spinel in Trillion Rose-Cut Shape for Sale Spinel Gemstones in 9.8 x 9.6 mm Size for Sale, Spinel Stones in Black Color

18.25ct Natural Black Spinel, Trillion, 9.8x9.6 mm

9.6 out of 10
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Product ID: 267556
Type: Spinel
Weight: 18.25 ct (total) 4 gems
avg. 4.56 ct
Size: mm calibrated
Size: 9.8 x 9.6 x 4.9 mm
Exact Size: 9.75 x 9.56 x 4.94 mm
Length x Width x Depth
Shape: Trillion Rose-Cut
Color: Black
Clarity: Opaque
Treatment: Untreated
Origin: Thailand
Content: 4 pcs
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  • Natural certified gemstones

    Gemstone Laboratories
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  • 30-day risk free return policy

$
120.46
Item in Stock
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Product Description

These are 18.25 carat natural black Spinel gems, 4 pcs in trillion shape with an exact size of 9.75 x 9.56 x 4.94 mm. 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 -> 9 star ratings

Everything was good, the purchase was what I expected and what they show is what you get.

Posted By Mr. in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Very good.

Posted By Tommy in December, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Very good and simple exchange

Posted By Waylon in March, 2026
Source: Bizrate

Overall Rating -> 8 star ratings

I've purchased things from GemSelect before. What you see is what you get, which is not always the case with gem sites online. You can find some good value with gem select, and I will buy from them again.

Posted By Meyeusername in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy and to the point

Posted By Victorius in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have purchased stones from gem select in the past and have been very satisfied. I expect to repeat that experience with this purchase as well

Posted By Marti in July, 2025
Source: Bizrate
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Enlarged Gemstone Image