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Home Gemstones Onyx
4.77 ct Black Onyx Gemstone, Onyx Gem in Cushion Cabochon Shape for Sale.
Photos are of Actual Product for Sale
4.77 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

4.77ct Natural Black Onyx, Cushion Cut, 11x10.9 mm

9.7 out of 10
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Product ID: 671958
Type: Onyx
Weight: 4.77 ct 1 gem
Size: 11 x 11 mm calibrated
Size: 11 x 10.9 x 4.9 mm
Exact Size: 10.96 x 10.94 x 4.92 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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$
9.50
Quantity
4 pieces available
Item in Stock
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Product Description

This is a 4.77 carat natural black Onyx gem, 1 pc in cushion shape with an exact size of 10.96 x 10.94 x 4.92 mm. This loose Onyx gemstone was mined in Sri Lanka and its clarity is Opaque.

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Overall Rating -> 8 star ratings

Site worked well and helped me find a rock that matched what I was looking for. Well within budget and I trust it will show up, so that's definitely positive. Not much else to it. Satisfied.

Posted By Big Ricky in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

overall great

Posted By SR in April, 2026
Source: Bizrate

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
Source: Bizrate

Overall Rating -> 10 star ratings

Absolutely love Gem Select. I always know the quality and accuracy of information and photos are top notch. Highly recommend!

Posted By Matthew K. in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc

Posted By Iamnotakrustykrab in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Was a good experience.

Posted By Tim in July, 2025
Source: Bizrate
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