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1.78 ctw Black Onyx Gemstones, Onyx Gems in Round Cabochon Shape for Sale.
Photos are of Actual Products for Sale
1.78 ctw Black Onyx Stones, Natural Onyx in Round Cabochon Shape for Sale Onyx Gemstones in 5.5 mm (calibrated) Size for Sale, Onyx Stones in Black Color

1.78ct Natural Black Onyx Gems, Round, Opaque

9.2 out of 10
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Onyx Product ID: 687653
Type: Onyx
Onyx Weight: 1.78 ct (total) Onyx 2 gems
avg. 0.89 ct
Onyx Size: 5.5 mm calibrated Onyx
Onyx Size: 5.5 mm Onyx
Onyx Exact Size: 5.50 x 3.15 mm
Diameter x Depth
Onyx Shape: Round Cabochon Onyx
Onyx Color: Black Onyx
Onyx Clarity: Opaque Onyx
Onyx Treatment: Dyed
Onyx Origin: Sri Lanka Onyx
Content: 2 pcs
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    Gemstone Laboratories
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$
4.27
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Product Description

These are 1.78 carat natural black Onyx gems, 2 pcs in round shape with an exact size of 5.50 mm x 3.15 mm (avg.). These loose Onyx gemstones were mined in Sri Lanka and their clarity is Opaque.

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Overall Rating -> 8 star ratings

First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.

Posted By Salvo in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I'm happy.

Posted By Ray in January, 2025
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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
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Overall Rating -> 10 star ratings

Excellent selection and easy to use, well done site

Posted By Steph in December, 2024
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Overall Rating -> 10 star ratings

Easy and convenient

Posted By Butch in September, 2024
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Overall Rating -> 10 star ratings

I am filling a small treasure chest and picked a nice amethyst.

Posted By VinnyD in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Nice website I just don't know much about the quality until I receive the stone.

Posted By Becky in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Good. I ts very user friendly.

Posted By Shalini in June, 2025
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Overall Rating -> 10 star ratings

Very fast navigation and purchase, which is good. I need to strike while the iron is hot.

Posted By Tim G. in February, 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