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Buy Black Onyx Gems

Black Onyx Weight
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ID: 686808
Weight: 3.10ct (total)
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 7.44
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ID: 687841
Weight: 3.36ct (total)
Size: 7.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 8.06
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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: 721609
Weight: 10.11ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 10.11
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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: 722139
Weight: 21.54ct (total)
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 25.85
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ID: 722356
Weight: 16.58ct (total)
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 19.90
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ID: 669124
Weight: 3.30ct
Size: 9.9 x 9.4 mm
Clarity: Opaque
Price: $ 3.96
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ID: 668859
Weight: 10.39ct
Size: 19 x 14.5 mm
Clarity: Opaque
Price: $ 12.47
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ID: 673305
Weight: 21.84ct
Size: 22 x 15.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 117.94
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ID: 688459
Weight: 2.32ct (total)
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 5.57
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ID: 687499
Weight: 1.34ct
Size: 7 mm (calibrated)
Clarity: Opaque
Price: $ 3.22
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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: 688180
Weight: 2.10ct (total)
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 5.04
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ID: 687772
Weight: 2.19ct (total)
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 5.26
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ID: 668860
Weight: 4.35ct
Size: 10 x 10 mm (calibrated)
Clarity: Opaque
Price: $ 12.47
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ID: 721784
Weight: 9.95ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Price: $ 11.94
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ID: 669894
Weight: 4.22ct
Size: 10 x 10 mm (calibrated)
Clarity: Opaque
Price: $ 5.06
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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: 687946
Weight: 1.03ct
Size: 6.5 mm (calibrated)
Clarity: Opaque
Price: $ 2.47
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ID: 669297
Weight: 20.08ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 24.10
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ID: 722407
Weight: 11.38ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Price: $ 13.66
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ID: 722142
Weight: 20.03ct (total)
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 24.04
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ID: 673180
Weight: 8.07ct (total)
Size: 13 x 11 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 19.37
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ID: 687493
Weight: 1.48ct
Size: 7 mm (calibrated)
Clarity: Opaque
Price: $ 3.55
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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: 721383
Weight: 9.97ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 11.96
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ID: 688344
Weight: 2.89ct (total)
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 6.94
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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: 687654
Weight: 1.98ct (total)
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 4.75
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ID: 686805
Weight: 2.93ct (total)
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 5.86
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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: 673182
Weight: 8.12ct (total)
Size: 13 x 11 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 19.49
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ID: 687941
Weight: 1.43ct
Size: 6.5 mm (calibrated)
Clarity: Opaque
Price: $ 3.43
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ID: 669131
Weight: 4.24ct
Size: 10 x 10 mm (calibrated)
Clarity: Opaque
Price: $ 5.09
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ID: 722138
Weight: 20.42ct (total)
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 24.50
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ID: 721384
Weight: 8.80ct
Size: 14.8 x 9.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 10.56
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ID: 668915
Weight: 9.65ct (total)
Size: 11 x 11 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 11.58
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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: 687778
Weight: 2.11ct (total)
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 5.06
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ID: 722131
Weight: 21.42ct (total)
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 25.70
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ID: 672935
Weight: 4.06ct
Size: 13 x 11 mm (calibrated)
Clarity: Opaque
Price: $ 9.74
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ID: 721541
Weight: 8.67ct (total)
Size: 10.5 x 10.3 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 8.67
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ID: 721792
Weight: 8.11ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 9.73
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ID: 687838
Weight: 2.90ct (total)
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 6.96
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ID: 669679
Weight: 8.50ct (total)
Size: 10.4 x 10.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 10.20
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ID: 687549
Weight: 2.24ct (total)
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 5.38
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ID: 673177
Weight: 8.18ct (total)
Size: 13 x 11 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 19.63
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ID: 688335
Weight: 2.83ct (total)
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 6.79
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ID: 672026
Weight: 19.15ct
Size: 24.9 x 12 mm
Clarity: Opaque
Content: 1 pc
Price: $ 45.96
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ID: 721795
Weight: 10.05ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 12.06
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ID: 687500
Weight: 1.63ct
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 3.91
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ID: 672132
Weight: 4.89ct
Size: 11 x 11 mm (calibrated)
Clarity: Opaque
Price: $ 11.74
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ID: 687782
Weight: 2.13ct (total)
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 5.11
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ID: 688460
Weight: 2.43ct (total)
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 5.83
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ID: 668252
Weight: 6.53ct (total)
Size: 9.9 x 9.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 7.84
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ID: 673637
Weight: 2.38ct (total)
Size: 7.2 x 5.2 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 4.76
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ID: 687656
Weight: 1.96ct (total)
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 4.70
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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: 721606
Weight: 9.20ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Price: $ 11.04
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1 - 6

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

It's mostly good, only some item's are easier to find through the search than the menu

Posted By Wayne in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

First time so this is an experiment! Shopping is so fun on this site, though!

Posted By Gem Delight in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection, trusted quality. What I have purchased has always been as discribed.

Posted By Sterling in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Great selection. Maybe too great i kept adding and deleting stuff because i found better looking ones

Posted By Edsor works in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have been buying gems for several years off and on and love their selection and great low prices. I started out wanting to get an example of each type of gem but after looking at all the types of gems and reading about them I realize it is almost impossible for me to do. It took me years just to read about them all. Gem Select is the best gem site you can find. For information or to buy. Steve M.

Posted By Stevee M. in January, 2025
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

Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.

Posted By JD in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

looked at pink stones and at sapphires bought some sapphires. I love looking and collecting gemstones..

Posted By Steven M. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

So far So good

Posted By VH-1 in July, 2025
Source: Bizrate
Enlarged Gemstone Image