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Home Gemstones Onyx
4.34 ct Black Onyx Gemstone, Onyx Gem in Heart Cabochon Shape for Sale.
Photos are of Actual Product for Sale
4.34 ct Black Onyx Stone, Natural Onyx in Heart Cabochon Shape for Sale Onyx Gemstone in 10 x 10 mm (calibrated) Size for Sale, Onyx Stone in Black Color

4.34ct Natural Black Onyx, Heart Shape, 10.2x10.1 mm

9.7 out of 10
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Product ID: 667909
Type: Onyx
Weight: 4.34 ct 1 gem
Size: 10 x 10 mm calibrated
Size: 10.2 x 10.1 x 5.4 mm
Exact Size: 10.19 x 10.13 x 5.43 mm
Length x Width x Depth
Shape: Heart Cabochon
Color: Black
Clarity: Opaque
Treatment: Dyed
Origin: Sri Lanka
Content: 1 pc
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$
4.32
Quantity
2 pieces available
Item in Stock
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Product Description

This is a 4.34 carat natural black Onyx gem, 1 pc in heart shape with an exact size of 10.19 x 10.13 x 5.43 mm. This loose Onyx gemstone was mined in Sri Lanka and its clarity is Opaque.

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GemSelect Certified Store Reviews

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Overall Rating -> 9 star ratings

If you have motion picture, then I will be more satisfied with.

Posted By Ray in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Enjoy viewing the selections. Excellent product

Posted By ToRa.62 in April, 2026
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Overall Rating -> 9 star ratings

Everything was good, the purchase was what I expected and what they show is what you get.

Posted By Mr. in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

The citrine gems are beautiful. I appreciated that each stone was individually shown on the website so I could see exactly what I was getting. No mystery person selecting random stones for me. The documentation included with each gem was high quality as well. Great price and arrived as expected.

Posted By Jen in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

A pleasant experience and many choices to choose from

Posted By Krackenking in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Always get a nice gemstone. Just like the picture. Never disappointed

Posted By Ron T in June, 2026
Source: Bizrate
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