Black Onyx Gemstones- In Stock, ready to Ship | GemSelect
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Bi-color
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Black Black Onyx
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Blue
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Brown
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Golden
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Gray
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Green
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Multicolor
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Orange
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Pink
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Purple
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Red
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Turquoise
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Violet
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White
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Yellow
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Single |
Pairs |
Lots |
Faceted |
Cabochons |
2.32ctw Black Onyx, Round, Opaque
5.5 mm (calibrated)
$ 4.62
4.35ct Black Onyx, Heart, Opaque
10.5 x 10.4 mm
$ 4.33
2.12ctw Black Onyx, Round, Opaque
5.5 mm (calibrated)
$ 4.22
20.08ct Black Onyx, Pear Shape, Opaque
25 x 18 mm (calibrated)
$ 20.00
19.19ct Black Onyx, Pear Shape, Opaque
25 x 18 mm (calibrated)
$ 19.11
2.88ctw Black Onyx, Round, Opaque
7 mm (calibrated)
$ 5.74
20.42ctw Black Onyx, Pear Shape, Opaque
18 x 13 mm (calibrated)
$ 20.34
9.32ct Black Onyx, Pear Shape, Opaque
18 x 13 mm (calibrated)
$ 9.28
4.71ct Black Onyx, Cushion, Opaque
11 x 11 mm (calibrated)
$ 9.38
3.97ct Black Onyx, Oval, Opaque
13 x 11 mm (calibrated)
$ 7.91
1.37ct Black Onyx, Round, Opaque
7 mm (calibrated)
$ 2.73
8.77ctw Black Onyx, Heart, Opaque
10.5 x 10.3 mm
$ 8.73
1.03ct Black Onyx, Round, Opaque
6.5 mm (calibrated)
$ 2.05
8.41ctw Black Onyx, Heart, Opaque
10 x 10 mm (calibrated)
$ 8.37
4.36ct Black Onyx, Heart, Opaque
10.5 x 10.3 mm
$ 4.34
1.23ct Black Onyx, Round, Opaque
5.5 mm (calibrated)
$ 2.45
4.40ct Black Onyx, Heart, Opaque
10.5 x 10.4 mm
$ 4.38
8.67ctw Black Onyx, Heart, Opaque
10 x 10 mm (calibrated)
$ 8.63
20.57ctw Black Onyx, Pear Shape, Opaque
18 x 13 mm (calibrated)
$ 20.48
2.20ctw Black Onyx, Round, Opaque
5.5 mm (calibrated)
$ 4.38
4.33ct Black Onyx, Heart, Opaque
10 x 10 mm (calibrated)
$ 4.32
2.89ctw Black Onyx, Round, Opaque
7 mm (calibrated)
$ 5.76
2.11ctw Black Onyx, Round, Opaque
5.5 mm (calibrated)
$ 4.20
4.70ct Black Onyx, Cushion, Opaque
11 x 11 mm (calibrated)
$ 9.36
Why Buy Black Onyx from GemSelect?
- Trusted Worldwide Since 2003
- Supplying natural gemstones to jewelers and collectors in 120+ countries
- Verified natural gemstones
- View All GemSelect Reviews on Bizrate
- Secure checkout and insured worldwide delivery
- 30-day returns and satisfaction guarantee
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. Maybe too great i kept adding and deleting stuff because i found better looking ones
Overall Rating -> 9 
The website was easy to use and informative of the selection of stones it has. I quickly found the right stone for me.
Overall Rating -> 10
GemSelect offers excellent choices, prices & service- highly recommended! Unfortunately, prior to ordering a replacement gemstone, my jeweler neglected to mention it needed to be one that was a'cushion cuta' to fit the existing mount. Have yet to return/exchangea'
Overall Rating -> 10
I needed a very specific color of tourmaline and Gem Select had it. I had to get the client to agree and then ordered the stone. It arrived better than pictured and we all were very happy.
Overall Rating -> 10
Easy and good price
Overall Rating -> 10
Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.
