Loose Onyx Gemstones for Sale - Items in Stock and ready to Ship

Onyx

Onyx is the black form of chalcedony, a cryptocrystalline form of quartz. Onyx naturally occurs in bands of black and white, and is typically dyed to produce the familiar jet black cabochons.

Gemstone Information

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10

Was easy to search for many gems and mineral stones.Authenticity of natural stones is important, and I feel this site offers some assurance on this.

Posted By DanM in November, 2023

Source: Bizrate

Overall Rating -> 10

Easy to use,I have spent many hours looking at the site

Posted By Skip in November, 2023

Source: Bizrate

Overall Rating -> 10

Pleasant.

Posted By Mk in November, 2023

Source: Bizrate

Overall Rating -> 9

making my own jewelry for my birth stone

Posted By LoveGeo in July, 2023

Source: Bizrate

Overall Rating -> 9

Never bought anything on this website before, but it probably won't be my last purchase. Definitely one of the easiest to use and most informative sites I've ever been to.

Posted By Bob in November, 2023

Source: Bizrate

Overall Rating -> 10

first time here sooooooooooo we will seeeee!!!!! so far so good!!!!!!

Posted By Seastone 56 in October, 2023

Source: Bizrate

Overall Rating -> 10

I was pleased with the selection of gems, the ease of navigating, and the smooth checkout

Posted By JamesMichael781 in September, 2023

Source: Bizrate

Overall Rating -> 10

Perfect size I was looking for and great price

Posted By Izzy in September, 2023

Source: Bizrate

Overall Rating -> 10

Always have good experience

Posted By Ginnie in September, 2023

Source: Bizrate

Overall Rating -> 10

Todo muy bien en la compra ahora esperar recibir el pedido.

Posted By MAGSMX in August, 2023

Source: Bizrate

Overall Rating -> 10

love yall

Posted By Rock hunter in August, 2023

Source: Bizrate

Overall Rating -> 10

Awesome

Posted By Mic in May, 2023

Source: Bizrate

Overall Rating -> 9

Not easy enough to buy by exact size, and many stones aren't carbechon curved shape on top

Posted By Erick in July, 2023

Source: Bizrate

Overall Rating -> 10

Very Good

Posted By Julian in July, 2023

Source: Bizrate

Overall Rating -> 9

Well presented images, clear information, quick and easy check out.

Posted By Mr. Bezel in July, 2023

Source: Bizrate

Overall Rating -> 10

I love the clear description of the certification options. It's very rare to see a gem site that offers a deep explanation of each institution that would certify the stone(s).

Posted By Oakcityceo in May, 2023

Source: Bizrate

Overall Rating -> 10

Selection ability was straightforward and easy.

Posted By Dave in May, 2023

Source: Bizrate

Overall Rating -> 8

purchased birthstones to be mounted into stud earrings as a gift for a friend's gift

Posted By MI photo in May, 2023

Source: Bizrate

Overall Rating -> 7

I love this site, I learn a lot from it. I like the selection and quality, I can't wait to use them in my work. The specimens are phenomenal. Look forward to more business from me in the future..

Posted By Ophii in January, 2023

Source: Bizrate

Overall Rating -> 10

I recommend to others

Posted By Kazzan in February, 2023

Source: Bizrate

Overall Rating -> 10

nice place to shop

Posted By Online Shopper in February, 2023

Source: Bizrate

Selected Gemstones

Gemstones A-Z

Buy Onyx Gemstones

32.3 ct Round Rose Cut Onyx, 25.6 mm From Sri Lanka

0.14 ct Round Onyx, 3.3 mm From Sri Lanka

9.88 ct Cushion Onyx, 11 x 10.9 mm From Sri Lanka

3.24 ct Trillion Onyx, 9.9 x 9.3 mm From Sri Lanka

12.52 ct Pear Onyx, 20 x 15 mm From Sri Lanka

0.18 ct Round Onyx, 3.6 mm From Sri Lanka

33.93 ct Round Rose Cut Onyx, 25.2 mm From Sri Lanka

4.34 ct Heart Onyx, 10.2 x 10 mm From Sri Lanka

6.78 ct Trillion Onyx, 9.9 x 9.4 mm From Sri Lanka

8.4 ct Oval Onyx, 13.1 x 11 mm From Sri Lanka

0.15 ct Pear Onyx, 3.9 x 3 mm From Sri Lanka

12.32 ct Oval Onyx, 18.2 x 13.3 mm From Sri Lanka

22.42 ct Pear Rose Cut Onyx, 24.7 x 18 mm From Sri Lanka

39.05 ct Oval Rose Cut Onyx, 30.1 x 22.6 mm From Sri Lanka

8.62 ct Cushion Onyx, 12 x 7.9 mm From Sri Lanka

23.37 ct Oval Onyx, 22.1 x 16 mm From Sri Lanka

8.8 ct Heart Rose Cut Onyx, 10.5 x 10.4 mm From Sri Lanka

4.38 ct Heart Rose Cut Onyx, 10.5 x 10.4 mm From Sri Lanka

4.94 ct Cushion Onyx, 11 x 11 mm From Sri Lanka

19.94 ct Pear Rose Cut Onyx, 24.5 x 17.8 mm From Sri Lanka

8.71 ct Heart Rose Cut Onyx, 10.5 x 10.4 mm From Sri Lanka

2.5 ct Round Onyx, 6.9 mm From Sri Lanka

27.17 ct Pear Rose Cut Onyx, 31.5 x 18.4 mm From Sri Lanka

33.59 ct Cushion Rose Cut Onyx, 26.8 x 17.7 mm From Sri Lanka

9.49 ct Cushion Onyx, 11 x 11 mm From Sri Lanka

4.07 ct Oval Onyx, 13.1 x 11.1 mm From Sri Lanka

3.25 ct Round Onyx, 7.1 mm From Sri Lanka

2.43 ct Round Onyx, 6.2 mm From Sri Lanka

8.67 ct Heart Onyx, 10.2 x 10.1 mm From Sri Lanka

2.14 ct Round Onyx, 5.5 mm From Sri Lanka

0.6 ct Round Onyx, 5.4 mm From Sri Lanka

1.42 ct Round Onyx, 6.9 mm From Sri Lanka

Onyx

Gemstone Information