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Home Gemstones Onyx
4.30 ct Black Onyx Gemstone, Onyx Gem in Heart Cabochon Shape for Sale.
Photos are of Actual Product for Sale
4.30 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

4.30ct Natural Black Onyx, Heart Shape, 10.1x10.1 mm

9.7 out of 10
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Product ID: 669129
Type: Onyx
Weight: 4.30 ct 1 gem
Size: 10 x 10 mm calibrated
Size: 10.1 x 10.1 x 5.4 mm
Exact Size: 10.13 x 10.12 x 5.44 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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$
4.28
Quantity
2 pieces available
Item in Stock
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Product Description

This is a 4.30 carat natural black Onyx gem, 1 pc in heart shape with an exact size of 10.13 x 10.12 x 5.44 mm. This loose Onyx gemstone was mined in Sri Lanka and its clarity is Opaque.

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Overall Rating -> 10 star ratings

Good, hope gem quality is good and genuine

Posted By Varun in May, 2026
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Navigating the site was very easy and the photos of the exact gem you would be purchasing was well done.

Posted By HVeeder in February, 2026
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Overall Rating -> 9 star ratings

Always a good quality stone. Priced fairly and shipped promptly. Answers emails quickly

Posted By Ron T in November, 2025
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Posted By Liz in May, 2026
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Great experience. I can't wait to explore on the website further.

Posted By Kymmie in September, 2025
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Overall Rating -> 10 star ratings

Enjoy viewing the selections. Excellent product

Posted By ToRa.62 in April, 2026
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