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Gemtypes in Category:
Onyx (310)
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ID:
687783
Weight:
2.31ct (total)
Size:
5.5 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
5.54
Item in Stock
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ID:
721550
Weight:
8.43ct (total)
Size:
10.4 x 10.4 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
10.12
Item in Stock
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ID:
668251
Weight:
8.67ct (total)
Size:
10 x 10 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
10.40
Item in Stock
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ID:
672130
Weight:
4.83ct
Size:
11 x 11 mm (calibrated)
Clarity:
Opaque
Price:
$
11.59
Item in Stock
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1
2
3
4
5
6
pcs 0 in Cart
ID:
671958
Weight:
4.77ct
Size:
11 x 11 mm (calibrated)
Clarity:
Opaque
Price:
$
11.45
Item in Stock
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1
2
3
4
pcs 0 in Cart
ID:
721606
Weight:
9.20ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Price:
$
11.04
Item in Stock
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ID:
669497
Weight:
20.38ct
Size:
25 x 18 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
24.46
Item in Stock
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ID:
672935
Weight:
4.06ct
Size:
13 x 11 mm (calibrated)
Clarity:
Opaque
Price:
$
9.74
Item in Stock
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1
2
3
4
pcs 0 in Cart
ID:
673179
Weight:
8.06ct (total)
Size:
13 x 11 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
19.34
Item in Stock
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ID:
671955
Weight:
4.74ct
Size:
11 x 11 mm (calibrated)
Clarity:
Opaque
Price:
$
11.38
Item in Stock
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1
2
3
4
5
pcs 0 in Cart
ID:
721790
Weight:
10.07ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Price:
$
12.08
Item in Stock
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1
2
3
4
pcs 0 in Cart
ID:
669675
Weight:
8.57ct (total)
Size:
10.4 x 10.4 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
10.28
Item in Stock
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ID:
688032
Weight:
2.69ct (total)
Size:
7 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
6.46
Item in Stock
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ID:
687548
Weight:
2.11ct (total)
Size:
5.5 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
5.06
Item in Stock
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ID:
672136
Weight:
4.54ct
Size:
11 x 11 mm (calibrated)
Clarity:
Opaque
Price:
$
10.90
Item in Stock
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1
2
3
4
5
6
7
pcs 0 in Cart
ID:
688182
Weight:
1.98ct (total)
Size:
5.5 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
4.75
Item in Stock
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ID:
687949
Weight:
1.08ct
Size:
7 mm (calibrated)
Clarity:
Opaque
Price:
$
2.59
Item in Stock
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ID:
687941
Weight:
1.43ct
Size:
6.5 mm (calibrated)
Clarity:
Opaque
Price:
$
3.43
Item in Stock
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ID:
671957
Weight:
4.88ct
Size:
11 x 11 mm (calibrated)
Clarity:
Opaque
Price:
$
11.71
Item in Stock
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ID:
721381
Weight:
10.69ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Price:
$
12.83
Item in Stock
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ID:
672024
Weight:
19.68ct
Size:
25 x 18 mm (calibrated)
Clarity:
Opaque
Price:
$
47.23
Item in Stock
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1
2
3
4
pcs 0 in Cart
ID:
669677
Weight:
8.77ct (total)
Size:
10.5 x 10.3 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
10.52
Item in Stock
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ID:
669106
Weight:
6.48ct (total)
Size:
9.9 x 9.4 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
7.78
Item in Stock
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ID:
722392
Weight:
10.00ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
12.00
Item in Stock
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ID:
687782
Weight:
2.13ct (total)
Size:
5.5 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
5.11
Item in Stock
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ID:
688437
Weight:
1.23ct
Size:
5.5 mm (calibrated)
Clarity:
Opaque
Price:
$
2.95
Item in Stock
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ID:
672132
Weight:
4.89ct
Size:
11 x 11 mm (calibrated)
Clarity:
Opaque
Price:
$
11.74
Item in Stock
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ID:
722387
Weight:
5.80ct
Size:
16 x 12 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
5.80
Item in Stock
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ID:
667909
Weight:
4.34ct
Size:
10 x 10 mm (calibrated)
Clarity:
Opaque
Price:
$
5.21
Item in Stock
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ID:
673180
Weight:
8.07ct (total)
Size:
13 x 11 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
19.37
Item in Stock
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ID:
722131
Weight:
21.42ct (total)
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
25.70
Item in Stock
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ID:
688432
Weight:
0.85ct
Size:
5.5 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
2.04
Item in Stock
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ID:
672023
Weight:
19.31ct
Size:
25 x 18 mm (calibrated)
Clarity:
Opaque
Price:
$
46.34
Item in Stock
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Select
1
2
3
pcs 0 in Cart
ID:
687839
Weight:
3.11ct (total)
Size:
7 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
7.46
Item in Stock
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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
Item in Stock
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ID:
722406
Weight:
10.50ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Price:
$
12.60
Item in Stock
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1
2
3
4
5
pcs 0 in Cart
ID:
669679
Weight:
8.50ct (total)
Size:
10.4 x 10.4 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
10.20
Item in Stock
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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
Item in Stock
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ID:
722399
Weight:
8.51ct
Size:
16.8 x 11.6 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
10.21
Item in Stock
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ID:
671960
Weight:
4.70ct
Size:
11 x 11 mm (calibrated)
Clarity:
Opaque
Price:
$
11.28
Item in Stock
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ID:
721543
Weight:
8.52ct (total)
Size:
10.5 x 10.4 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
10.22
Item in Stock
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ID:
688434
Weight:
0.60ct
Size:
5.5 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
1.44
Item in Stock
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ID:
721334
Weight:
3.90ct
Size:
10.5 x 10.4 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
4.68
Item in Stock
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ID:
669678
Weight:
8.38ct (total)
Size:
10.5 x 10.4 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
10.06
Item in Stock
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ID:
687496
Weight:
1.61ct
Size:
7 mm (calibrated)
Clarity:
Opaque
Price:
$
3.86
Item in Stock
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ID:
721792
Weight:
8.11ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
9.73
Item in Stock
More Options & Item Details
ID:
722137
Weight:
21.82ct (total)
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
26.18
Item in Stock
More Options & Item Details
ID:
687657
Weight:
2.11ct (total)
Size:
5.5 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
5.06
Item in Stock
More Options & Item Details
ID:
721330
Weight:
4.46ct
Size:
10.5 x 10.5 mm
Clarity:
Opaque
Price:
$
5.35
Item in Stock
More Options & Item Details
ID:
672028
Weight:
19.29ct
Size:
25 x 18 mm (calibrated)
Clarity:
Opaque
Price:
$
46.30
Item in Stock
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1
2
3
4
pcs 0 in Cart
ID:
668860
Weight:
4.35ct
Size:
10 x 10 mm (calibrated)
Clarity:
Opaque
Price:
$
12.47
Item in Stock
More Options & Item Details
ID:
722408
Weight:
10.38ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Price:
$
12.46
Item in Stock
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ID:
687550
Weight:
1.84ct (total)
Size:
5.5 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
4.42
Item in Stock
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ID:
688031
Weight:
2.94ct (total)
Size:
7 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
7.06
Item in Stock
More Options & Item Details
ID:
668904
Weight:
8.67ct (total)
Size:
10 x 10 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
10.40
Item in Stock
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ID:
722356
Weight:
16.58ct (total)
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
19.90
Item in Stock
More Options & Item Details
ID:
722357
Weight:
17.51ct (total)
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
21.01
Item in Stock
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ID:
721788
Weight:
8.70ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
10.44
Item in Stock
More Options & Item Details
ID:
687655
Weight:
2.26ct (total)
Size:
5.5 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
5.42
Item in Stock
More Options & Item Details
ID:
672438
Weight:
4.24ct
Size:
10 x 10 mm (calibrated)
Clarity:
Opaque
Price:
$
10.18
Item in Stock
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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
Great selection of gems at a reasonable price
Posted By Curt in July, 2025
Source: Bizrate
Overall Rating -> 10
Very large selection from affordable to high end I will be coming back to shop again!
Posted By GreenGator in August, 2025
Source: Bizrate
Overall Rating -> 10
So far So good
Posted By VH-1 in July, 2025
Source: Bizrate
Overall Rating -> 9
I am very pleased with the ways you can filter your searches on this site, finding exactly what I want with little knowledge of what I am looking for is surprisingly easy!
Posted By Leo in March, 2025
Source: Bizrate
Overall Rating -> 9
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 -> 9
I was looking for a small gift for a friend- the process is the same as every other time and was very simple, and she even got her gift early! On the downside, there's no way to easily keep track of multiple Shipping Addresses, so if I want to send a gift to Friend A and to Friend B, I have to overwrite everything and it's a fair bit clunky in that regard.
Posted By Jezzi in June, 2025
Source: Bizrate