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Home Gemstones Onyx
2.33 ctw Black Onyx Gemstones, Onyx Gems in Round Cabochon Shape for Sale.
Photos are of Actual Products for Sale
2.33 ctw Black Onyx Stones, Natural Onyx in Round Cabochon Shape for Sale Onyx Gemstones in 5.5 mm (calibrated) Size for Sale, Onyx Stones in Black Color

2.33ct Natural Black Onyx, Round Cut, 5.53 mm

9.7 out of 10
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Product ID: 688186
Type: Onyx
Weight: 2.33 ct (total) 2 gems
avg. 1.17 ct
Size: 5.5 mm calibrated
Size: 5.5 mm
Exact Size: 5.53 x 3.44 mm
Diameter x Depth
Shape: Round Cabochon
Color: Black
Clarity: Opaque
Treatment: Dyed
Origin: Sri Lanka
Content: 2 pcs
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Product Description

These are 2.33 carat natural black Onyx gems, 2 pcs in round shape with an exact size of 5.53 mm x 3.44 mm (avg.). These loose Onyx gemstones were mined in Sri Lanka and their clarity is Opaque.

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Overall Rating -> 10 star ratings

Great website, easy to navigate, and loads quickly. Have bought here before, very pleased!

Posted By SallyO in February, 2026
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Overall Rating -> 8 star ratings

First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.

Posted By Salvo in July, 2025
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Overall Rating -> 10 star ratings

All good

Posted By DouscheGift in August, 2025
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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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Overall Rating -> 7 star ratings

easy interface for a pricless buy

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

I could see the actual gem I was buying

Posted By Bugs in December, 2025
Source: Bizrate
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