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8.57 ctw Black Onyx Gemstones, Onyx Gems in Heart Rose-Cut Shape for Sale.
Photos are of Actual Products for Sale
8.57 ctw Black Onyx Stones, Natural Onyx in Heart Rose-Cut Shape for Sale Onyx Gemstones in 10.5 x 10.3 mm Size for Sale, Onyx Stones in Black Color

8.57ct Natural Black Onyx Gems, Heart Shape, Opaque

9.7 out of 10
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Onyx Product ID: 669436
Type: Onyx
Onyx Weight: 8.57 ct (total) Onyx 2 gems
avg. 4.29 ct
Onyx Size: mm calibrated Onyx
Onyx Size: 10.5 x 10.3 x 4.9 mm Onyx
Onyx Exact Size: 10.46 x 10.34 x 4.91 mm
Length x Width x Depth
Onyx Shape: Heart Rose-Cut Onyx
Onyx Color: Black Onyx
Onyx Clarity: Opaque Onyx
Onyx Treatment: Dyed
Onyx Origin: Sri Lanka Onyx
Content: 2 pcs
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Product Description

These are 8.57 carat natural black Onyx gems, 2 pcs in heart shape with an exact size of 10.46 x 10.34 x 4.91 mm. These loose Onyx gemstones were mined in Sri Lanka and their clarity is Opaque.

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Overall Rating -> 9 star ratings

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Posted By Ron T in November, 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 -> 10 star ratings

I've purchased from here many times over the last decade+. I find the information easy to understand, helpful, and interesting. I have always been satisfied that I got exactly what I ordered. Pictures and descriptions are clear and unique to each stone.

Posted By Maggie in August, 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

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Posted By Tim G. in February, 2025
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