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Buy White Onyx Gems

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4.40ct Natural Black Onyx, Heart, Opaque, Photo A

4.40ct Natural Black Onyx, Heart, Opaque

Onyx

4.40ct1 pc
$ 5.28
10.5 x 10.4 mm
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4.10ct Natural Black Onyx, Heart, Opaque, Photo A

4.10ct Natural Black Onyx, Heart, Opaque

Onyx

4.10ct1 pc
$ 4.92
10 x 10 mm (calibrated)
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19.58ct Natural Black Onyx, Oval, Opaque, Photo A

19.58ct Natural Black Onyx, Oval, Opaque

Onyx

19.58ct1 pc
$ 46.99
25 x 18 mm (calibrated)
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3.16ct Natural Black Onyx, Trillion, Opaque, Photo A

3.16ct Natural Black Onyx, Trillion, Opaque

Onyx

3.16ct1 pc
$ 3.79
9.8 x 9.3 mm
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3.97ct Natural Black Onyx, Oval, Opaque, Photo A

3.97ct Natural Black Onyx, Oval, Opaque

Onyx

3.97ct1 pc
$ 9.53
13 x 11 mm (calibrated)
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19.71ct Natural Black Onyx, Pear Shape, Opaque, Photo A
Onyx Product Video (669544)

19.71ct Natural Black Onyx, Pear Shape, Opaque

Onyx

19.71ct1 pc
$ 23.65
25 x 18 mm (calibrated)
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28.87ct Natural Black Onyx, Oval, Opaque, Photo A

28.87ct Natural Black Onyx, Oval, Opaque

Onyx

28.87ct1 pc
$ 34.64
27 x 20 mm (calibrated)
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4.31ct Natural Black Onyx, Heart, Opaque, Photo A

4.31ct Natural Black Onyx, Heart, Opaque

Onyx

4.31ct1 pc
$ 5.17
10.4 x 10.3 mm
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11.28ct Natural Black Onyx, Pear Shape, Opaque, Photo A

11.28ct Natural Black Onyx, Pear Shape, Opaque

Onyx

11.28ct1 pc
$ 13.54
18 x 13 mm (calibrated)
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8.69ctw Natural Black Onyx, Heart, Opaque, Photo A

8.69ctw Natural Black Onyx, Heart, Opaque

Onyx

8.69ct total2 pcs
$ 10.43
10.5 x 10.4 mm
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2.11ctw Natural Black Onyx, Round, Opaque, Photo A

2.11ctw Natural Black Onyx, Round, Opaque

Onyx

2.11ct total2 pcs
$ 5.06
5.5 mm (calibrated)
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1.99ctw Natural Black Onyx, Round, Opaque, Photo A

1.99ctw Natural Black Onyx, Round, Opaque

Onyx

1.99ct total2 pcs
$ 4.78
5.5 mm (calibrated)
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2.31ctw Natural Black Onyx, Round, Opaque, Photo A

2.31ctw Natural Black Onyx, Round, Opaque

Onyx

2.31ct total2 pcs
$ 5.54
6.5 mm (calibrated)
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12.30ct Natural Black Onyx, Pear Shape, Opaque, Photo A

12.30ct Natural Black Onyx, Pear Shape, Opaque

Onyx

12.30ct1 pc
$ 29.52
20 x 15 mm (calibrated)
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4.33ct Natural Black Onyx, Heart, Opaque, Photo A

4.33ct Natural Black Onyx, Heart, Opaque

Onyx

4.33ct1 pc
$ 5.20
10 x 10 mm (calibrated)
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9.38ct Natural Black Onyx, Pear Shape, Opaque, Photo A

9.38ct Natural Black Onyx, Pear Shape, Opaque

Onyx

9.38ct1 pc
$ 11.26
18 x 13 mm (calibrated)
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22.03ctw Natural Black Onyx, Pear Shape, Opaque, Photo A

22.03ctw Natural Black Onyx, Pear Shape, Opaque

Onyx

22.03ct total2 pcs
$ 26.44
18 x 13 mm (calibrated)
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4.70ct Natural Black Onyx, Cushion, Opaque, Photo A

4.70ct Natural Black Onyx, Cushion, Opaque

Onyx

4.70ct1 pc
$ 11.28
11 x 11 mm (calibrated)
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19.53ct Natural Black Onyx, Oval, Opaque, Photo A

19.53ct Natural Black Onyx, Oval, Opaque

Onyx

19.53ct1 pc
$ 46.87
25 x 18 mm (calibrated)
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8.06ctw Natural Black Onyx, Oval, Opaque, Photo A

8.06ctw Natural Black Onyx, Oval, Opaque

Onyx

8.06ct total2 pcs
$ 19.34
13 x 11 mm (calibrated)
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6.79ctw Natural Black Onyx, Trillion, Opaque, Photo A

6.79ctw Natural Black Onyx, Trillion, Opaque

Onyx

6.79ct total2 pcs
$ 6.79
9.9 x 9.4 mm
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8.54ctw Natural Black Onyx, Heart, Opaque, Photo A

8.54ctw Natural Black Onyx, Heart, Opaque

Onyx

8.54ct total2 pcs
$ 10.25
10.5 x 10.4 mm
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8.51ctw Natural Black Onyx, Heart, Opaque, Photo A

8.51ctw Natural Black Onyx, Heart, Opaque

Onyx

8.51ct total2 pcs
$ 8.51
10 x 10 mm (calibrated)
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4.46ct Natural Black Onyx, Heart, Opaque, Photo A

4.46ct Natural Black Onyx, Heart, Opaque

Onyx

4.46ct1 pc
$ 5.35
10.5 x 10.3 mm
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10.51ct Natural Black Onyx, Pear Shape, Opaque, Photo A

10.51ct Natural Black Onyx, Pear Shape, Opaque

Onyx

10.51ct1 pc
$ 12.61
18 x 13 mm (calibrated)
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9.70ctw Natural Black Onyx, Cushion, Opaque, Photo A

9.70ctw Natural Black Onyx, Cushion, Opaque

Onyx

9.70ct total2 pcs
$ 11.64
11 x 11 mm (calibrated)
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4.88ct Natural Black Onyx, Cushion, Opaque, Photo A

4.88ct Natural Black Onyx, Cushion, Opaque

Onyx

4.88ct1 pc
$ 11.71
11 x 11 mm (calibrated)
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1.59ct Natural Black Onyx, Round, Opaque, Photo A

1.59ct Natural Black Onyx, Round, Opaque

Onyx

1.59ct1 pc
$ 3.82
7 mm (calibrated)
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8.67ctw Natural Black Onyx, Heart, Opaque, Photo A

8.67ctw Natural Black Onyx, Heart, Opaque

Onyx

8.67ct total2 pcs
$ 10.40
10 x 10 mm (calibrated)
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8.71ctw Natural Black Onyx, Heart, Opaque, Photo A

8.71ctw Natural Black Onyx, Heart, Opaque

Onyx

8.71ct total2 pcs
$ 10.45
10.5 x 10.4 mm
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19.82ct Natural Black Onyx, Oval, Opaque, Photo A

19.82ct Natural Black Onyx, Oval, Opaque

Onyx

19.82ct1 pc
$ 47.57
25 x 18 mm (calibrated)
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1.03ct Natural Black Onyx, Round, Opaque, Photo A

1.03ct Natural Black Onyx, Round, Opaque

Onyx

1.03ct1 pc
$ 2.47
6.5 mm (calibrated)
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Why Buy White 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

Over pretty well experience the your website no complaints about it very easy reliable service provided

Posted By Blas in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

My experience has always been fantastic. Today I saved 6 gems to email a customer looking for a particular color blend to fit into an east west setting, so her options were limited, but we found one she wanted, deleted all the others in the cart and order the gem she selected. It was helpful to be able to put them in the cart so I could save them until she selected the one she wanted without having to research all of them again.

Posted By RJ in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

All good

Posted By DouscheGift in August, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Will know more once order received

Posted By Jim in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

The stones are very nice.

Posted By Mvk in August, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

It was a good interaction I got a good gemstone for cheap

Posted By Jon in December, 2025
Source: Bizrate
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