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Home Gemstones Onyx
8.64 ctw Black Onyx Gemstones, Onyx Gems in Heart Rose-Cut Shape for Sale.
Photos are of Actual Products for Sale
8.64 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

8.64ct Natural Black Onyx, Heart Shape, 10.5x10.3 mm

9.7 out of 10
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Product ID: 669431
Type: Onyx
Weight: 8.64 ct (total) 2 gems
avg. 4.32 ct
Size: mm calibrated
Size: 10.5 x 10.3 x 5 mm
Exact Size: 10.45 x 10.32 x 4.97 mm
Length x Width x Depth
Shape: Heart Rose-Cut
Color: Black
Clarity: Opaque
Treatment: Dyed
Origin: Sri Lanka
Content: 2 pcs
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Product Description

These are 8.64 carat natural black Onyx gems, 2 pcs in heart shape with an exact size of 10.45 x 10.32 x 4.97 mm. These loose Onyx gemstones were mined in Sri Lanka and their clarity is Opaque.

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GemSelect Certified Store Reviews

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Overall Rating -> 10 star ratings

It was all good

Posted By Debsarabs in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Very neat and to the point

Posted By Botha in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

A pleasant experience and many choices to choose from

Posted By Krackenking in November, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Ita's a pretty good and simple way to find gems that youa're looking for amazing selection

Posted By Amman in May, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Fast snd easy to find what I was looking for

Posted By Bawb in May, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

It was fine . Wish there had been more round stones to select from

Posted By Emm in January, 2026
Source: Bizrate
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Turnaround Time: 8-12 working days Details
Enlarged Gemstone Image