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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
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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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Posted By YE in October, 2025
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Overall Rating -> 10 star ratings

Although the stones are smaller than I thought, I really don't think in millimeters, they are perfect. I plan to put one into a ring and the other into a necklace. Ordering was easy, contact kept me aware of how shipping was going, and delivery was sooner than expected. The quality of stones I have ordered in the past and this recent order is outstanding and stones I will be proud to wear.

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They have literally everything on this website! The prices are also pretty good, I was able to find plenty of nice stones that I could afford!

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