X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

20.56 ct Black Onyx Gemstone, Onyx Gem in Oval Rose-Cut Shape for Sale.
Photos are of Actual Product for Sale
20.56 ct Black Onyx Stone, Natural Onyx in Oval Rose-Cut Shape for Sale Onyx Gemstone in 25 x 18 mm (calibrated) Size for Sale, Onyx Stone in Black Color

20.56ct Natural Black Onyx, Oval, Opaque

9.2 out of 10
See Bizrate Ratings for GemSelect
Onyx Product ID: 669488
Type: Onyx
Onyx Weight: 20.56 ct Onyx 1 gem
Onyx Size: 25 x 18 mm calibrated Onyx
Onyx Size: 24 x 17.4 x 7 mm Onyx
Onyx Exact Size: 24.02 x 17.43 x 6.96 mm
Length x Width x Depth
Onyx Shape: Oval Rose-Cut Onyx
Onyx Color: Black Onyx
Onyx Clarity: Opaque Onyx
Onyx Treatment: Dyed
Onyx Origin: Sri Lanka Onyx
Content: 1 pc
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

$
24.67
Item is Unavailable
Item in Stock
Certified Gemstones

RISK FREE

30 DAY RETURN MONEY BACK GUARANTEE

100%

FULLY GUARANTEED

Product Description

This is a 20.56 carat natural black Onyx gem, 1 pc in oval shape with an exact size of 24.02 x 17.43 x 6.96 mm. This loose Onyx gemstone was mined in Sri Lanka and its 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

went well

Posted By Doug in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

A pleasant experience and many choices to choose from

Posted By Krackenking in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

All good

Posted By DouscheGift in August, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Very easy to navigate with a great selection.

Posted By Bar181 in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Found a beautiful opal at a great price. I was not disappointed when it arrived. Even better in person.

Posted By Fried Rice in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have purchased stones from gem select in the past and have been very satisfied. I expect to repeat that experience with this purchase as well

Posted By Marti in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

love these guys been ordering since 2000 maybe

Posted By JHT in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy and to the point

Posted By Victorius in May, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

The checkout said the my ccv was invalid. i had to use another card.

Posted By Ron in April, 2025
Source: Bizrate
Download Identification Report PDF
Enlarged Gemstone Image