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9.56 ctw Black Onyx Gemstones, Onyx Gems in Cushion Cabochon Shape for Sale.
Photos are of Actual Products for Sale
9.56 ctw Black Onyx Stones, Natural Onyx in Cushion Cabochon Shape for Sale Onyx Gemstones in 11 x 11 mm (calibrated) Size for Sale, Onyx Stones in Black Color

9.56ct Natural Black Onyx, Cushion Cut, 11x10.9 mm

9.7 out of 10
See Bizrate Ratings for GemSelect
Product ID: 668258
Type: Onyx
Weight: 9.56 ct (total) 2 gems
avg. 4.78 ct
Size: 11 x 11 mm calibrated
Size: 11 x 10.9 x 4.9 mm
Exact Size: 11.00 x 10.94 x 4.92 mm
Length x Width x Depth
Shape: Cushion Cabochon
Color: Black
Clarity: Opaque
Treatment: Dyed
Origin: Sri Lanka
Content: 2 pcs
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  • Natural certified gemstones

    Gemstone Laboratories
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  • 30-day risk free return policy

$
11.47
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Product Description

These are 9.56 carat natural black Onyx gems, 2 pcs in cushion shape with an exact size of 11.00 x 10.94 x 4.92 mm. These loose Onyx gemstones were mined in Sri Lanka and their clarity is Opaque.

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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 liked the selection of gems, and price. I did not like your PayPal process. I already have a PP account and you want me to sign up for another.

Posted By CLTCJH in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection, using for custom jewlery for my wife.

Posted By Smitty in June, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Always a good quality stone. Priced fairly and shipped promptly. Answers emails quickly

Posted By Ron T in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

The citrine gems are beautiful. I appreciated that each stone was individually shown on the website so I could see exactly what I was getting. No mystery person selecting random stones for me. The documentation included with each gem was high quality as well. Great price and arrived as expected.

Posted By Jen in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Found a beautiful opal at a great price. I was not disappointed when it arrived. Even better in person.

Posted By Fried Rice in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

GemSelect offers excellent choices, prices & service- highly recommended! Unfortunately, prior to ordering a replacement gemstone, my jeweler neglected to mention it needed to be one that was a'cushion cuta' to fit the existing mount. Have yet to return/exchangea'

Posted By CJ in March, 2026
Source: Bizrate
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