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4.76 ct Black Onyx Gemstone, Onyx Gem in Cushion Cabochon Shape for Sale.
Photos are of Actual Product for Sale
4.76 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

4.76ct Natural Black Onyx, Cushion Cut, 10.9x10.9 mm

9.7 out of 10
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Product ID: 671956
Type: Onyx
Weight: 4.76 ct 1 gem
Size: 11 x 11 mm calibrated
Size: 10.9 x 10.9 x 4.9 mm
Exact Size: 10.94 x 10.90 x 4.93 mm
Length x Width x Depth
Shape: Cushion Cabochon
Color: Black
Clarity: Opaque
Treatment: Dyed
Origin: Sri Lanka
Content: 1 pc
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$
9.48
Quantity
4 pieces available
Item in Stock
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Product Description

This is a 4.76 carat natural black Onyx gem, 1 pc in cushion shape with an exact size of 10.94 x 10.90 x 4.93 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 -> 9 star ratings

I was looking for a small gift for a friend- the process is the same as every other time and was very simple, and she even got her gift early! On the downside, there's no way to easily keep track of multiple Shipping Addresses, so if I want to send a gift to Friend A and to Friend B, I have to overwrite everything and it's a fair bit clunky in that regard.

Posted By Jezzi in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Have made 2 purchases so far from GemSelect and they have been amazing! Anytime I requested additional info, videos or pictures of a particular item, the response was always timely and helpful. This is a great place to buy, if you are looking for loose stones. Highly recommend!

Posted By Britnee Rose in September, 2025
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
Source: Bizrate

Overall Rating -> 10 star ratings

Absolutely love the website, selection and products. Can you guys add a gemstones with inclusions tab. I like those it'd be nice to have them all in one place but i do understand it would be alot of work to go through and categorize them. Thank you anyways

Posted By The homie edgar in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

So far So good

Posted By VH-1 in July, 2025
Source: Bizrate
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