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Home Gemstones Onyx
2.94 ctw Black Onyx Gemstones, Onyx Gems in Round Cabochon Shape for Sale.
Photos are of Actual Products for Sale
2.94 ctw Black Onyx Stones, Natural Onyx in Round Cabochon Shape for Sale Onyx Gemstones in 7 mm (calibrated) Size for Sale, Onyx Stones in Black Color

2.94ct Natural Black Onyx, Round Cut, 7.07 mm

9.7 out of 10
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Product ID: 688031
Type: Onyx
Weight: 2.94 ct (total) 2 gems
avg. 1.47 ct
Size: 7 mm calibrated
Size: 7.1 mm
Exact Size: 7.07 x 3.60 mm
Diameter x Depth
Shape: Round Cabochon
Color: Black
Clarity: Opaque
Treatment: Dyed
Origin: Sri Lanka
Content: 2 pcs
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Product Description

These are 2.94 carat natural black Onyx gems, 2 pcs in round shape with an exact size of 7.07 mm x 3.60 mm (avg.). These loose Onyx gemstones were mined in Sri Lanka and their clarity is Opaque.

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Posted By Debsarabs in February, 2026
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I have shopped at Gemselect for nearly 20 years. I especially like that you see pictures of the exact gem you are purchasing. You are a trusted source.

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I loved the selection of gemstones you have a to z

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No problems. I had a minor address issue in the past and someone got back to me very quickly and we resolved the issue satisfactorily. I appreciated the quick, concerned response. So important when buyer/seller are so far apart in distance. Thank you Gem Select. Keep up the good work!

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