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Home Gemstones Onyx
20.42 ctw Black Onyx Gemstones, Onyx Gems in Pear Checkerboard Shape for Sale.
Photos are of Actual Products for Sale
20.42 ctw Black Onyx Stones, Natural Onyx in Pear Checkerboard Shape for Sale Onyx Gemstones in 18 x 13 mm (calibrated) Size for Sale, Onyx Stones in Black Color

20.42ct Natural Black Onyx, Pear Shape, 17.7x12.8 mm

9.7 out of 10
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Product ID: 722138
Type: Onyx
Weight: 20.42 ct (total) 2 gems
avg. 10.21 ct
Size: 18 x 13 mm calibrated
Size: 17.7 x 12.8 x 6.6 mm
Exact Size: 17.71 x 12.76 x 6.60 mm
Length x Width x Depth
Shape: Pear Checkerboard
Color: Black
Clarity: Opaque
Treatment: Dyed
Origin: Sri Lanka
Content: 2 pcs
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Product Description

These are 20.42 carat natural black Onyx gems, 2 pcs in pear shape shape with an exact size of 17.71 x 12.76 x 6.60 mm. These loose Onyx gemstones were mined in Sri Lanka and their clarity is Opaque.

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Overall Rating -> 10 star ratings

Recomendado Totalmente Los Productos Se Entregaron A Tiempo

Posted By Alexis in May, 2026
Source: Bizrate

Overall Rating -> 8 star ratings

It was a good interaction I got a good gemstone for cheap

Posted By Jon in December, 2025
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Overall Rating -> 9 star ratings

Very easy to navigate with a great selection.

Posted By Bar181 in August, 2025
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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 -> 8 star ratings

It was fine

Posted By Na in April, 2026
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Overall Rating -> 7 star ratings

Easy, quick.

Posted By Mich in June, 2026
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