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8.59 ctw Black Onyx Gemstones, Onyx Gems in Heart Cabochon Shape for Sale.
Photos are of Actual Products for Sale
8.59 ctw Black Onyx Stones, Natural Onyx in Heart Cabochon Shape for Sale Onyx Gemstones in 10 x 10 mm (calibrated) Size for Sale, Onyx Stones in Black Color

8.59ct Natural Black Onyx Gems, Heart, Opaque

9.2 out of 10
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Onyx Product ID: 668248
Type: Onyx
Onyx Weight: 8.59 ct (total) Onyx 2 gems
avg. 4.30 ct
Onyx Size: 10 x 10 mm calibrated Onyx
Onyx Size: 10.2 x 10.1 x 5.4 mm Onyx
Onyx Exact Size: 10.15 x 10.13 x 5.44 mm
Length x Width x Depth
Onyx Shape: Heart 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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$
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Product Description

These are 8.59 carat natural black Onyx gems, 2 pcs in heart shape with an exact size of 10.15 x 10.13 x 5.44 mm. These loose Onyx gemstones were mined in Sri Lanka and their clarity is Opaque.

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Overall Rating -> 10 star ratings

The site provided lots of detail, factual data, and good photos. I also like the availability of searching by price range as well as by the type of stone.

Posted By SLIntuitive Donna in July, 2025
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Overall Rating -> 10 star ratings

Loved everything. High quality, quick shipping, and authentication included.

Posted By Chris in March, 2025
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Overall Rating -> 10 star ratings

All these questions, and I don't have to give any blood. What a Deal... I absolutely enjoy the Gem Select emails every month. This one today was special. I always say, I'll know it when I see it. This stone today was the One. Odd and Intriguing. Thank You So Much for all that you do.

Posted By G.W. in June, 2025
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Overall Rating -> 9 star ratings

I love wide range of stones. Always have my preference.

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Overall Rating -> 8 star ratings

great experience

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

Love beauty, color, quality, and price of these gems. Personal projects and will come here soon and everytime.

Posted By Darkstar in June, 2025
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It's always a pleasure doing business with Gem Select. Outstanding products ant very reasonable prices. Thank You One and All.

Posted By G.W. or Bakyow in July, 2025
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Overall Rating -> 9 star ratings

I was looking for a small gift for a friend- the process is the same as every other time and was very simple, and she even got her gift early! On the downside, there's no way to easily keep track of multiple Shipping Addresses, so if I want to send a gift to Friend A and to Friend B, I have to overwrite everything and it's a fair bit clunky in that regard.

Posted By Jezzi in June, 2025
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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
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