X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

8.25 ctw Black Onyx Gemstones, Onyx Gems in Oval Cabochon Shape for Sale.
Photos are of Actual Products for Sale
8.25 ctw Black Onyx Stones, Natural Onyx in Oval Cabochon Shape for Sale Onyx Gemstones in 13 x 11 mm (calibrated) Size for Sale, Onyx Stones in Black Color

8.25ct Natural Black Onyx Gems, Oval, Opaque

9.2 out of 10
See Bizrate Ratings for GemSelect
Onyx Product ID: 673183
Type: Onyx
Onyx Weight: 8.25 ct (total) Onyx 2 gems
avg. 4.13 ct
Onyx Size: 13 x 11 mm calibrated Onyx
Onyx Size: 13.1 x 11 x 3.5 mm Onyx
Onyx Exact Size: 13.08 x 11.03 x 3.51 mm
Length x Width x Depth
Onyx Shape: Oval Cabochon Onyx
Onyx Color: Black Onyx
Onyx Clarity: Opaque Onyx
Onyx Treatment: Dyed
Onyx Origin: Sri Lanka Onyx
Content: 2 pcs
Certificate Options

Checking all Boxes

  • Natural certified gemstones

    Gemstone Laboratories
  • Accept Credit, Debit Card and PayPal

    Payment Options
  • Worldwide shipping

    Shipping Options
  • 30-day risk free return policy

$
19.80
Item in Stock
Certified Gemstones

RISK FREE

30 DAY RETURN MONEY BACK GUARANTEE

100%

FULLY GUARANTEED

Product Description

These are 8.25 carat natural black Onyx gems, 2 pcs in oval shape with an exact size of 13.08 x 11.03 x 3.51 mm. These loose Onyx gemstones were mined in Sri Lanka and their clarity is Opaque.

GemSelect Policies

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

Have made 2 purchases so far from GemSelect and they have been amazing! Anytime I requested additional info, videos or pictures of a particular item, the response was always timely and helpful. This is a great place to buy, if you are looking for loose stones. Highly recommend!

Posted By Britnee Rose in September, 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

Overall Rating -> 10 star ratings

Good selection, using for custom jewlery for my wife.

Posted By Smitty in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very food

Posted By Keeto in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love Gem Select! When you order what you see is what you get. As soon as you make payment that particular gem is taken off the photo album. That way the one you select is a one of that kind.

Posted By Desertchick in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy to find what I wanted

Posted By Villian in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Everything was great, website user friendly, quality amazing, communication amazing, delivery amazing, everything was as expected, they done what they said they would, overall experience was amazing.

Posted By Jac in July, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Excellent selection of stones -including ones I had never heard of before -nice site and fairly easy to use

Posted By DrD in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very surprised how quick and efficient it was to checkout and pay. Also found exactly what I was looking for no issues.

Posted By Watson in May, 2025
Source: Bizrate
Download Identification Report PDF
BGL Brief Report $ 18.00
Turnaround Time: 3-4 working days Details
AIG Brief Report $ 35.00
Turnaround Time: 5-10 working days Details
ICA Brief Report $ 62.00
Turnaround Time: 8-12 working days Details
Enlarged Gemstone Image