X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

Buy White Onyx Gems

Exact Match not Available: Go Back
8.89ctw Natural Black Onyx, Heart, Opaque, Photo A

8.89ctw Natural Black Onyx, Heart, Opaque

Onyx

8.89ct total2 pcs
$ 10.67
10.5 x 10.5 mm
View Details
Add to Cart
4.24ct Natural Black Onyx, Heart, Opaque, Photo A

4.24ct Natural Black Onyx, Heart, Opaque

Onyx

4.24ct1 pc
$ 10.18
10 x 10 mm (calibrated)
View Details
Add to Cart
1.23ct Natural Black Onyx, Round, Opaque, Photo A

1.23ct Natural Black Onyx, Round, Opaque

Onyx

1.23ct1 pc
$ 2.95
5.5 mm (calibrated)
View Details
Add to Cart
4.35ct Natural Black Onyx, Heart, Opaque, Photo A

4.35ct Natural Black Onyx, Heart, Opaque

Onyx

4.35ct1 pc
$ 12.47
10 x 10 mm (calibrated)
View Details
Add to Cart
8.57ctw Natural Black Onyx, Heart, Opaque, Photo A

8.57ctw Natural Black Onyx, Heart, Opaque

Onyx

8.57ct total2 pcs
$ 10.28
10.4 x 10.4 mm
View Details
Add to Cart
1.98ctw Natural Black Onyx, Round, Opaque, Photo A

1.98ctw Natural Black Onyx, Round, Opaque

Onyx

1.98ct total2 pcs
$ 4.75
5.5 mm (calibrated)
View Details
Add to Cart
1.63ct Natural Black Onyx, Round, Opaque, Photo A

1.63ct Natural Black Onyx, Round, Opaque

Onyx

1.63ct1 pc
$ 3.91
7 mm (calibrated)
View Details
Add to Cart
2.19ctw Natural Black Onyx, Round, Opaque, Photo A

2.19ctw Natural Black Onyx, Round, Opaque

Onyx

2.19ct total2 pcs
$ 5.26
5.5 mm (calibrated)
View Details
Add to Cart
13.39ct Natural Black Onyx, Pear Shape, Opaque, Photo A

13.39ct Natural Black Onyx, Pear Shape, Opaque

Onyx

13.39ct1 pc
$ 16.07
18.3 x 14.1 mm
View Details
Add to Cart
4.20ct Natural Black Onyx, Heart, Opaque, Photo A

4.20ct Natural Black Onyx, Heart, Opaque

Onyx

4.20ct1 pc
$ 5.04
10 x 10 mm (calibrated)
View Details
Add to Cart
4.38ct Natural Black Onyx, Heart, Opaque, Photo A

4.38ct Natural Black Onyx, Heart, Opaque

Onyx

4.38ct1 pc
$ 5.26
10.4 x 10.4 mm
View Details
Add to Cart
6.53ctw Natural Black Onyx, Trillion, Opaque, Photo A

6.53ctw Natural Black Onyx, Trillion, Opaque

Onyx

6.53ct total2 pcs
$ 7.84
9.9 x 9.4 mm
View Details
Add to Cart
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 10.4 mm
View Details
Add to Cart
2.12ctw Natural Black Onyx, Round, Opaque, Photo A

2.12ctw Natural Black Onyx, Round, Opaque

Onyx

2.12ct total2 pcs
$ 5.09
5.5 mm (calibrated)
View Details
Add to Cart
27.22ct Natural Black Onyx, Oval, Opaque, Photo A

27.22ct Natural Black Onyx, Oval, Opaque

Onyx

27.22ct1 pc
$ 32.66
25 x 18 mm (calibrated)
View Details
Add to Cart
9.68ctw Natural Black Onyx, Cushion, Opaque, Photo A

9.68ctw Natural Black Onyx, Cushion, Opaque

Onyx

9.68ct total2 pcs
$ 11.62
11 x 11 mm (calibrated)
View Details
Add to Cart
4.54ct Natural Black Onyx, Cushion, Opaque, Photo A

4.54ct Natural Black Onyx, Cushion, Opaque

Onyx

4.54ct1 pc
$ 10.90
11 x 11 mm (calibrated)
View Details
Add to Cart
4.50ct Natural Black Onyx, Heart, Opaque, Photo A

4.50ct Natural Black Onyx, Heart, Opaque

Onyx

4.50ct1 pc
$ 5.40
10.5 x 10.4 mm
View Details
Add to Cart
4.34ct Natural Black Onyx, Heart, Opaque, Photo A

4.34ct Natural Black Onyx, Heart, Opaque

Onyx

4.34ct1 pc
$ 5.21
10 x 10 mm (calibrated)
View Details
Add to Cart
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
View Details
Add to Cart
19.41ct Natural Black Onyx, Oval, Opaque, Photo A

19.41ct Natural Black Onyx, Oval, Opaque

Onyx

19.41ct1 pc
$ 46.58
25 x 18 mm (calibrated)
View Details
Add to Cart
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)
View Details
Add to Cart
2.48ctw Natural Black Onyx, Round, Opaque, Photo A

2.48ctw Natural Black Onyx, Round, Opaque

Onyx

2.48ct total2 pcs
$ 5.95
6.5 mm (calibrated)
View Details
Add to Cart
4.81ct Natural Black Onyx, Cushion, Opaque, Photo A

4.81ct Natural Black Onyx, Cushion, Opaque

Onyx

4.81ct1 pc
$ 5.77
11 x 11 mm (calibrated)
View Details
Add to Cart
4.19ct Natural Black Onyx, Heart, Opaque, Photo A

4.19ct Natural Black Onyx, Heart, Opaque

Onyx

4.19ct1 pc
$ 5.03
10.5 x 10.3 mm
View Details
Add to Cart
19.62ctw Natural Black Onyx, Pear Shape, Opaque, Photo A

19.62ctw Natural Black Onyx, Pear Shape, Opaque

Onyx

19.62ct total2 pcs
$ 23.54
18 x 13 mm (calibrated)
View Details
Add to Cart
19.74ct Natural Black Onyx, Oval, Opaque, Photo A

19.74ct Natural Black Onyx, Oval, Opaque

Onyx

19.74ct1 pc
$ 47.38
25 x 18 mm (calibrated)
View Details
Add to Cart
2.05ctw Natural Black Onyx, Round, Opaque, Photo A

2.05ctw Natural Black Onyx, Round, Opaque

Onyx

2.05ct total2 pcs
$ 4.92
5.5 mm (calibrated)
View Details
Add to Cart
2.74ctw Natural Black Onyx, Round, Opaque, Photo A

2.74ctw Natural Black Onyx, Round, Opaque

Onyx

2.74ct total2 pcs
$ 6.58
7 mm (calibrated)
View Details
Add to Cart
8.12ctw Natural Black Onyx, Oval, Opaque, Photo A

8.12ctw Natural Black Onyx, Oval, Opaque

Onyx

8.12ct total2 pcs
$ 19.49
13 x 11 mm (calibrated)
View Details
Add to Cart
21.26ct Natural Black Onyx, Pear Shape, Opaque, Photo A

21.26ct Natural Black Onyx, Pear Shape, Opaque

Onyx

21.26ct1 pc
$ 25.51
25 x 18 mm (calibrated)
View Details
Add to Cart
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)
View Details
Add to Cart

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

Great experience. I can't wait to explore on the website further.

Posted By Kymmie in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have shopped at Gemselect for nearly 20 years. I especially like that you see pictures of the exact gem you are purchasing. You are a trusted source.

Posted By DNaber in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

So far, my experience was great...Thanks

Posted By Kaydi in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc

Posted By Iamnotakrustykrab in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good.

Posted By Tommy in December, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

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
Enlarged Gemstone Image