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Home Gemstones Black Opal
3.11 ct Multicolor Black Opal Gemstone, Black Opal Gem in Cushion Cabochon Shape for Sale.
Photos are of Actual Product for Sale
3.11 ct Multicolor Black Opal Stone, Natural Black Opal in Cushion Cabochon Shape for Sale Black Opal Gemstone in 12 x 8 mm (calibrated) Size for Sale, Black Opal Stone in Multicolor Color

3.11ct Multicolor Black Opal, Cushion Cut, 11.9x8.3 mm

9.7 out of 10
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Product ID: 746092
Type: Black Opal
Weight: 3.11 ct 1 gem
Size: 12 x 8 mm calibrated
Size: 11.9 x 8.3 x 5.4 mm
Exact Size: 11.90 x 8.26 x 5.38 mm
Length x Width x Depth
Shape: Cushion Cabochon
Color: Multicolor
Clarity: Opaque
Treatment: Smoked
Origin: Ethiopia
Content: 1 pc
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Product Description

This is a 3.11 carat natural multicolor Black Opal gem, 1 pc in cushion shape with an exact size of 11.90 x 8.26 x 5.38 mm. This loose Black Opal gemstone was mined in Ethiopia and its clarity is Opaque.

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GemSelect Certified Store Reviews

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Overall Rating -> 9 star ratings

Very good and simple exchange

Posted By Waylon in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.

Posted By JD in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

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
Source: Bizrate

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 -> 9 star ratings

Plan on purchasing on an ongoing basis. So far.....so good....

Posted By Jim in January, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Always a good quality stone. Priced fairly and shipped promptly. Answers emails quickly

Posted By Ron T in November, 2025
Source: Bizrate
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