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Home Gemstones Opal
13.04 ct Black Opal Gemstone, Opal Gem in Marquise Cabochon Shape for Sale.
Photos are of Actual Product for Sale
13.04 ct Black Opal Stone, Natural Opal in Marquise Cabochon Shape for Sale Opal Gemstone in 29.8 x 13.9 mm Size for Sale, Opal Stone in Black Color

13.04ct Natural Black Opal, Marquise, 29.8x13.9 mm

9.7 out of 10
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Product ID: 664567
Type: Opal
Weight: 13.04 ct 1 gem
Size: mm calibrated
Size: 29.8 x 13.9 x 7.3 mm
Exact Size: 29.79 x 13.90 x 7.30 mm
Length x Width x Depth
Shape: Marquise Cabochon
Color: Black
Clarity: Opaque
Treatment: Smoked
Origin: Ethiopia
Content: 1 pc
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Product Description

This is a 13.04 carat natural black Opal gem, 1 pc in marquise shape with an exact size of 29.79 x 13.90 x 7.30 mm. This loose Opal gemstone was mined in Ethiopia and its clarity is Opaque.

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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!

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I had a very easy time navigating the web page and using filters to find what I was looking for. The varied selection was nice to see and pricing is clear and fair.

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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 -> 10 star ratings

GemSelect offers excellent choices, prices & service- highly recommended! Unfortunately, prior to ordering a replacement gemstone, my jeweler neglected to mention it needed to be one that was a'cushion cuta' to fit the existing mount. Have yet to return/exchangea'

Posted By CJ in March, 2026
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I purchased from you before and I have never been disappointed. I always received what I expected and your products are very nice.

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