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4.78 ct Black Onyx Gemstone, Onyx Gem in Cushion Cabochon Shape for Sale.
Photos are of Actual Product for Sale
4.78 ct Black Onyx Stone, Natural Onyx in Cushion Cabochon Shape for Sale Onyx Gemstone in 11 x 11 mm (calibrated) Size for Sale, Onyx Stone in Black Color

4.78ct Natural Black Onyx, Cushion, Opaque

9.2 out of 10
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Onyx Product ID: 668335
Type: Onyx
Onyx Weight: 4.78 ct Onyx 1 gem
Onyx Size: 11 x 11 mm calibrated Onyx
Onyx Size: 11 x 10.9 x 5 mm Onyx
Onyx Exact Size: 10.99 x 10.90 x 4.98 mm
Length x Width x Depth
Onyx Shape: Cushion Cabochon Onyx
Onyx Color: Black Onyx
Onyx Clarity: Opaque Onyx
Onyx Treatment: Dyed
Onyx Origin: Sri Lanka Onyx
Content: 1 pc
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    Gemstone Laboratories
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  • 30-day risk free return policy

$
5.74
Quantity
7 pieces available
Item in Stock
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Product Description

This is a 4.78 carat natural black Onyx gem, 1 pc in cushion shape with an exact size of 10.99 x 10.90 x 4.98 mm. This loose Onyx gemstone was mined in Sri Lanka and its clarity is Opaque.

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Posted By DNaber in October, 2025
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Very good Hoping you will increase your inventory especially in the 6mm Thanks

Posted By Ibie in February, 2025
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I could see the actual gem I was buying

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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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