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Black Onyx Weight
Black Onyx Size
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Black Onyx Price

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ID: 669495
Weight: 15.16ct
Size: 26.9 x 14.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 18.19
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ID: 668258
Weight: 9.56ct (total)
Size: 11 x 11 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 11.47
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ID: 669133
Weight: 3.35ct
Size: 9.9 x 9.3 mm
Clarity: Opaque
Price: $ 4.02
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ID: 669429
Weight: 8.90ct (total)
Size: 10.5 x 10.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 10.68
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ID: 687659
Weight: 2.24ct (total)
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 5.38
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ID: 669291
Weight: 26.38ct
Size: 23.1 x 18 mm
Clarity: Opaque
Content: 1 pc
Price: $ 31.66
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ID: 687499
Weight: 1.34ct
Size: 7 mm (calibrated)
Clarity: Opaque
Price: $ 3.22
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ID: 669132
Weight: 11.43ct
Size: 19.1 x 14.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 13.72
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ID: 722401
Weight: 10.04ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 12.05
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ID: 688343
Weight: 2.90ct (total)
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 6.96
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ID: 687654
Weight: 1.98ct (total)
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 4.75
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ID: 688339
Weight: 2.84ct (total)
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 5.68
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ID: 722386
Weight: 12.67ct
Size: 18.5 x 13.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 15.20
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ID: 721608
Weight: 9.31ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Price: $ 11.17
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ID: 721611
Weight: 11.14ct
Size: 17.8 x 10 mm
Clarity: Opaque
Content: 1 pc
Price: $ 13.37
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ID: 722390
Weight: 9.35ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 11.22
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ID: 669899
Weight: 4.31ct
Size: 10.4 x 10.3 mm
Clarity: Opaque
Price: $ 5.17
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ID: 687842
Weight: 2.65ct (total)
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 6.36
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ID: 721607
Weight: 10.44ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 12.53
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ID: 673304
Weight: 12.12ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Price: $ 29.09
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ID: 721602
Weight: 10.11ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 12.13
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ID: 721328
Weight: 4.40ct
Size: 10.5 x 10.4 mm
Clarity: Opaque
Price: $ 5.28
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ID: 687658
Weight: 2.36ct (total)
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 5.66
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ID: 672444
Weight: 11.25ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 27.00
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ID: 672030
Weight: 19.58ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Price: $ 46.99
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ID: 669295
Weight: 33.29ct
Size: 23.4 x 21.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 39.95
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ID: 669216
Weight: 4.38ct
Size: 10.4 x 10.4 mm
Clarity: Opaque
Price: $ 5.26
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ID: 669224
Weight: 4.35ct
Size: 10.5 x 10.4 mm
Clarity: Opaque
Price: $ 5.22
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ID: 669299
Weight: 17.01ct
Size: 21.8 x 17.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 20.52
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ID: 669434
Weight: 8.49ct (total)
Size: 10.5 x 10.3 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 10.19
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ID: 687944
Weight: 1.12ct
Size: 6.5 mm (calibrated)
Clarity: Opaque
Price: $ 2.69
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ID: 669901
Weight: 4.36ct
Size: 10.5 x 10.4 mm
Clarity: Opaque
Price: $ 5.23
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ID: 722134
Weight: 20.57ct (total)
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 24.68
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ID: 687660
Weight: 2.16ct (total)
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 5.18
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ID: 721540
Weight: 8.50ct (total)
Size: 10.5 x 10.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 10.20
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ID: 721786
Weight: 9.91ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Price: $ 11.89
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ID: 721335
Weight: 4.14ct
Size: 10.4 x 10.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 4.97
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ID: 669220
Weight: 4.16ct
Size: 10.4 x 10.3 mm
Clarity: Opaque
Price: $ 4.99
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ID: 688028
Weight: 3.20ct (total)
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 7.68
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ID: 687832
Weight: 2.86ct (total)
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 6.86
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ID: 722132
Weight: 19.62ct (total)
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 23.54
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ID: 687661
Weight: 2.06ct (total)
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 4.94
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ID: 669493
Weight: 27.22ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 32.66
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ID: 721339
Weight: 4.19ct
Size: 10.4 x 10.3 mm
Clarity: Opaque
Price: $ 5.03
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ID: 688341
Weight: 3.07ct (total)
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 7.37
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ID: 688186
Weight: 2.33ct (total)
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 5.59
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ID: 688179
Weight: 1.98ct (total)
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 4.75
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ID: 721331
Weight: 4.31ct
Size: 10.5 x 10.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 5.17
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ID: 687553
Weight: 2.88ct (total)
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 6.91
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ID: 721547
Weight: 8.66ct (total)
Size: 10.5 x 10.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 10.39
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ID: 672137
Weight: 4.70ct
Size: 11 x 11 mm (calibrated)
Clarity: Opaque
Price: $ 11.28
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ID: 668866
Weight: 3.35ct
Size: 9.9 x 9.3 mm
Clarity: Opaque
Price: $ 4.02
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ID: 669892
Weight: 4.46ct
Size: 10.5 x 10.4 mm
Clarity: Opaque
Price: $ 5.35
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ID: 688024
Weight: 2.58ct (total)
Size: 6.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 6.19
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ID: 668254
Weight: 9.68ct (total)
Size: 11 x 11 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 11.62
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ID: 688338
Weight: 3.11ct (total)
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 7.46
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ID: 668905
Weight: 6.79ct (total)
Size: 9.9 x 9.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 6.79
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ID: 722389
Weight: 9.50ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Price: $ 11.40
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ID: 721337
Weight: 4.20ct
Size: 10 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 5.04
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ID: 668910
Weight: 9.62ct (total)
Size: 11 x 11 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 11.54
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1 - 6

Why Buy Black Onyx from GemSelect?

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

Easy to use website

Posted By Mel in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Have made 2 purchases so far from GemSelect and they have been amazing! Anytime I requested additional info, videos or pictures of a particular item, the response was always timely and helpful. This is a great place to buy, if you are looking for loose stones. Highly recommend!

Posted By Britnee Rose in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great experience. I can't wait to explore on the website further.

Posted By Kymmie in September, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I did not realize these stones were of jewelry quality. They are really beautiful, just not what I was expecting which was more of a natural stone.

Posted By Jewelry Quality Stones in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I could see the actual gem I was buying

Posted By Bugs in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

the selection is good as are the prices

Posted By Old man in August, 2025
Source: Bizrate
Enlarged Gemstone Image