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Buy Black Onyx Gems

Black Onyx Weight
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ID: 669290
Weight: 32.30ct
Size: 25.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 38.76
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ID: 669490
Weight: 22.42ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 22.42
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ID: 671951
Weight: 4.94ct
Size: 11 x 11 mm (calibrated)
Clarity: Opaque
Price: $ 9.88
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ID: 721332
Weight: 4.46ct
Size: 10.5 x 10.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 5.35
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ID: 688178
Weight: 2.05ct (total)
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 4.92
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ID: 669671
Weight: 8.31ct (total)
Size: 10.4 x 10.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 9.97
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ID: 721604
Weight: 9.32ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 11.18
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ID: 721785
Weight: 11.60ct
Size: 19.4 x 14.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 13.92
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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: 668248
Weight: 8.59ct (total)
Size: 10 x 10 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 10.31
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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: 684427
Weight: avg. 0.16 ct / each
Size: 3.5 mm (calibrated)
Clarity: Opaque
Price: $ 0.49
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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: 687491
Weight: 1.42ct
Size: 7 mm (calibrated)
Clarity: Opaque
Price: $ 3.41
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ID: 721385
Weight: 10.04ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 12.05
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ID: 722398
Weight: 10.08ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Price: $ 12.10
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ID: 669102
Weight: 8.64ct (total)
Size: 10 x 10 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 10.37
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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: 687779
Weight: 2.17ct (total)
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 5.21
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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: 721792
Weight: 8.11ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 9.73
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ID: 684432
Weight: avg. 0.15 ct / each
Size: 3.3 mm
Clarity: Opaque
Price: $ 0.45
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ID: 721378
Weight: 9.19ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 11.03
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ID: 671958
Weight: 4.77ct
Size: 11 x 11 mm (calibrated)
Clarity: Opaque
Price: $ 11.45
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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: 688434
Weight: 0.60ct
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 1.44
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ID: 721545
Weight: 8.42ct (total)
Size: 10.4 x 10.3 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 10.10
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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: 721337
Weight: 4.20ct
Size: 10 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 5.04
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ID: 721605
Weight: 9.47ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Price: $ 11.36
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ID: 687945
Weight: 1.24ct
Size: 6.5 mm (calibrated)
Clarity: Opaque
Price: $ 2.98
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ID: 721549
Weight: 8.54ct (total)
Size: 10.5 x 10.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 10.25
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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: 672447
Weight: 12.30ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Price: $ 29.52
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ID: 669221
Weight: 4.19ct
Size: 10.5 x 10.3 mm
Clarity: Opaque
Price: $ 5.03
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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: 688340
Weight: 2.96ct (total)
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 7.10
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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: 673183
Weight: 8.25ct (total)
Size: 13 x 11 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 19.80
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ID: 722387
Weight: 5.80ct
Size: 16 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 5.80
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ID: 722403
Weight: 10.51ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Price: $ 12.61
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ID: 671962
Weight: 4.85ct
Size: 11 x 11 mm (calibrated)
Clarity: Opaque
Price: $ 11.64
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ID: 668332
Weight: 4.51ct
Size: 11 x 11 mm (calibrated)
Clarity: Opaque
Price: $ 5.41
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ID: 688432
Weight: 0.85ct
Size: 5.5 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 2.04
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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: 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: 688032
Weight: 2.69ct (total)
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 6.46
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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: 673173
Weight: 8.01ct (total)
Size: 13 x 11 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 19.22
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ID: 721793
Weight: 9.82ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 11.78
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ID: 669536
Weight: 19.24ct
Size: 24.9 x 16.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 23.09
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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: 721600
Weight: 8.92ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 10.70
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ID: 671960
Weight: 4.70ct
Size: 11 x 11 mm (calibrated)
Clarity: Opaque
Price: $ 11.28
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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: 688435
Weight: 1.20ct
Size: 5.5 mm (calibrated)
Clarity: Opaque
Price: $ 2.88
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ID: 721788
Weight: 8.70ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 10.44
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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: 672031
Weight: 19.42ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Price: $ 46.61
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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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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 WAS GREAT SIMPLE I WAS ABLE TO MAKE AN ACCOUNT EASY AND WAS ABLE TO FAVORITE ALL OF MY FINAL SELECTED GEMS, I JUST LOVE IT.

Posted By YE in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the quality, package and info of your gems.

Posted By Diana in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

All these questions, and I don't have to give any blood. What a Deal... I absolutely enjoy the Gem Select emails every month. This one today was special. I always say, I'll know it when I see it. This stone today was the One. Odd and Intriguing. Thank You So Much for all that you do.

Posted By G.W. in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great for buying gemstones, came with authenticity certs. Will buy again someday!

Posted By Uggadugga in May, 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

I have found GemSelect to have the best selections of quality stones at a reasonable price. I like the packaging and the report availability.

Posted By Sam in March, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I wish there were options for jewelry settings

Posted By Tim in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very food

Posted By Keeto in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

So far, my experience was great...Thanks

Posted By Kaydi in May, 2025
Source: Bizrate
Enlarged Gemstone Image