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4.20 ct Black Onyx Gemstone, Onyx Gem in Heart Rose-Cut Shape for Sale.
Photos are of Actual Product for Sale
4.20 ct Black Onyx Stone, Natural Onyx in Heart Rose-Cut Shape for Sale Onyx Gemstone in 10.4 x 10.3 mm Size for Sale, Onyx Stone in Black Color

4.20ct Natural Black Onyx, Heart, Opaque

9.2 out of 10
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Onyx Product ID: 669895
Type: Onyx
Onyx Weight: 4.20 ct Onyx 1 gem
Onyx Size: mm calibrated Onyx
Onyx Size: 10.4 x 10.3 x 4.9 mm Onyx
Onyx Exact Size: 10.44 x 10.33 x 4.91 mm
Length x Width x Depth
Onyx Shape: Heart Rose-Cut Onyx
Onyx Color: Black Onyx
Onyx Clarity: Opaque Onyx
Onyx Treatment: Dyed
Onyx Origin: Sri Lanka Onyx
Content: 1 pc
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$
5.04
Quantity
6 pieces available
Item in Stock
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Product Description

This is a 4.20 carat natural black Onyx gem, 1 pc in heart shape with an exact size of 10.44 x 10.33 x 4.91 mm. This loose Onyx gemstone was mined in Sri Lanka and its clarity is Opaque.

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Overall Rating -> 9 star ratings

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Posted By Napoleon in August, 2025
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Posted By Jhidron in October, 2025
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Overall Rating -> 10 star ratings

Very good Hoping you will increase your inventory especially in the 6mm Thanks

Posted By Ibie in February, 2025
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I have been buying gems for several years off and on and love their selection and great low prices. I started out wanting to get an example of each type of gem but after looking at all the types of gems and reading about them I realize it is almost impossible for me to do. It took me years just to read about them all. Gem Select is the best gem site you can find. For information or to buy. Steve M.

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Good prices

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It was my second time so I understand what it is to do

Posted By Ibie in February, 2025
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Overall Rating -> 9 star ratings

the gems were smaller than I thought but I was at fault for not reading the complete discrimination

Posted By Tim in May, 2025
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