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28.87 ct Black Onyx Gemstone, Onyx Gem in Oval Rose-Cut Shape for Sale.
Photos are of Actual Product for Sale
28.87 ct Black Onyx Stone, Natural Onyx in Oval Rose-Cut Shape for Sale Onyx Gemstone in 27 x 20 mm (calibrated) Size for Sale, Onyx Stone in Black Color

28.87ct Natural Black Onyx, Oval Cut, 27.2x20.3 mm

9.8 out of 10
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Onyx Product ID: 669542
Type: Onyx
Onyx Weight: 28.87 ct Onyx 1 gem
Onyx Size: 27 x 20 mm calibrated Onyx
Onyx Size: 27.2 x 20.3 x 10.5 mm Onyx
Onyx Exact Size: 27.19 x 20.29 x 10.48 mm
Length x Width x Depth
Onyx Shape: Oval Rose-Cut Onyx
Onyx Color: Black Onyx
Onyx Clarity: Opaque Onyx
Onyx Treatment: Dyed
Onyx Origin: Sri Lanka Onyx
Content: 1 pc
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Product Description

This is a 28.87 carat natural black Onyx gem, 1 pc in oval shape with an exact size of 27.19 x 20.29 x 10.48 mm. This loose Onyx gemstone was mined in Sri Lanka and its clarity is Opaque.

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Overall Rating -> 10 star ratings

Very good Hoping you will increase your inventory especially in the 6mm Thanks

Posted By Ibie in February, 2025
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So far, my experience was great...Thanks

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The checkout said the my ccv was invalid. i had to use another card.

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My whole experience is great.

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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 -> 9 star ratings

I wish there were options for jewelry settings

Posted By Tim in May, 2025
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