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8.11 ct Black Onyx Gemstone, Onyx Gem in Pear Checkerboard Shape for Sale.
Photos are of Actual Product for Sale
8.11 ct Black Onyx Stone, Natural Onyx in Pear Checkerboard Shape for Sale Onyx Gemstone in 18 x 13 mm (calibrated) Size for Sale, Onyx Stone in Black Color

8.11ct Natural Black Onyx, Pear Shape, 17.9x12.9 mm

9.8 out of 10
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Onyx Product ID: 721792
Type: Onyx
Onyx Weight: 8.11 ct Onyx 1 gem
Onyx Size: 18 x 13 mm calibrated Onyx
Onyx Size: 17.9 x 12.9 x 5.1 mm Onyx
Onyx Exact Size: 17.90 x 12.93 x 5.12 mm
Length x Width x Depth
Onyx Shape: Pear Checkerboard 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 8.11 carat natural black Onyx gem, 1 pc in pear shape shape with an exact size of 17.90 x 12.93 x 5.12 mm. This loose Onyx gemstone was mined in Sri Lanka and its clarity is Opaque.

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Overall Rating -> 10 star ratings

I needed a very specific color of tourmaline and Gem Select had it. I had to get the client to agree and then ordered the stone. It arrived better than pictured and we all were very happy.

Posted By Tim W in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for a site with every type of gem I could want for setting in luxury blades and assumed I would need to look outside the US, but GemSelect made it easy to get everything I wanted without leaving the house! Wide enough selection that I do not feel the need to look elsewhere and pricing the same.

Posted By Razormane in April, 2025
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My experience has always been fantastic. Today I saved 6 gems to email a customer looking for a particular color blend to fit into an east west setting, so her options were limited, but we found one she wanted, deleted all the others in the cart and order the gem she selected. It was helpful to be able to put them in the cart so I could save them until she selected the one she wanted without having to research all of them again.

Posted By RJ in January, 2026
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Posted By PI SC in May, 2025
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Overall Rating -> 10 star ratings

I am filling a small treasure chest and picked a nice amethyst.

Posted By VinnyD in August, 2025
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Overall Rating -> 10 star ratings

My whole experience is great.

Posted By Ghs in November, 2025
Source: Bizrate
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ICA Brief Report $ 90.00
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