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3.18 ct Multicolor Black Opal Gemstone, Black Opal Gem in Round Cabochon Shape for Sale.
Photos are of Actual Product for Sale
3.18 ct Multicolor Black Opal Stone, Natural Black Opal in Round Cabochon Shape for Sale Black Opal Gemstone in 11 mm (calibrated) Size for Sale, Black Opal Stone in Multicolor Color

3.18ct Natural Multicolor Black Opal, Round, Transparent

9.2 out of 10
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Black Opal Product ID: 746100
Type: Black Opal
Black Opal Weight: 3.18 ct Black Opal 1 gem
Black Opal Size: 11 mm calibrated Black Opal
Black Opal Size: 11.3 mm Black Opal
Black Opal Exact Size: 11.31 x 5.80 mm
Diameter x Depth
Black Opal Shape: Round Cabochon Black Opal
Black Opal Color: Multicolor Black Opal
Black Opal Clarity: Transparent Black Opal
Black Opal Treatment: Smoked
Black Opal Origin: Ethiopia Black Opal
Content: 1 pc
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$
111.62
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Product Description

This is a 3.18 carat natural multicolor Black Opal gem, 1 pc in round shape with an exact size of 11.31 mm x 5.80 mm . This loose Black Opal gemstone was mined in Ethiopia and its clarity is Transparent.

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Overall Rating -> 10 star ratings

I have shopped at Gemselect for nearly 20 years. I especially like that you see pictures of the exact gem you are purchasing. You are a trusted source.

Posted By DNaber in October, 2025
Source: Bizrate

Overall Rating -> 7 star ratings

Excited to see

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

I was able to find what I was looking for

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

Very professional site

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

My whole experience is great.

Posted By Ghs in November, 2025
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Overall Rating -> 9 star ratings

I did not have any problems

Posted By Clilrichard in January, 2025
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Overall Rating -> 9 star ratings

the gems were smaller than I thought but I was at fault for not reading the complete discrimination

Posted By Tim in May, 2025
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Overall Rating -> 9 star ratings

I think therea's no problem

Posted By Napoleon in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I found what I was looking for...had to look up millimeters to inches. It would be nice to see something, like a quarter, in the pix to show relative size. I plan on buy loose gemstones for every month in the calendar

Posted By TheP in January, 2025
Source: Bizrate
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Turnaround Time: 8-12 working days Details
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