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Home Gemstones Black Opal
4.00 ct Multicolor Black Opal Gemstone, Black Opal Gem in Cushion Cabochon Shape for Sale.
Photos are of Actual Product for Sale
4.00 ct Multicolor Black Opal Stone, Natural Black Opal in Cushion Cabochon Shape for Sale Black Opal Gemstone in 17.9 x 8.5 mm Size for Sale, Black Opal Stone in Multicolor Color

4.00ct Multicolor Black Opal, Cushion Cut, 17.9x8.5 mm

9.7 out of 10
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Product ID: 679925
Type: Black Opal
Weight: 4.00 ct 1 gem
Size: mm calibrated
Size: 17.9 x 8.5 x 5.3 mm
Exact Size: 17.89 x 8.47 x 5.27 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 4.00 carat natural multicolor Black Opal gem, 1 pc in cushion shape with an exact size of 17.89 x 8.47 x 5.27 mm. This loose Black Opal gemstone was mined in Ethiopia and its clarity is Opaque.

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GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 9 star ratings

Very easy to navigate with a great selection.

Posted By Bar181 in August, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

They have literally everything on this website! The prices are also pretty good, I was able to find plenty of nice stones that I could afford!

Posted By JC in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I needed a very specific color of tourmaline and Gem Select had it. I had to get the client to agree and then ordered the stone. It arrived better than pictured and we all were very happy.

Posted By Tim W in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I liked the selection of gems, and price. I did not like your PayPal process. I already have a PP account and you want me to sign up for another.

Posted By CLTCJH in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

All items were delivered on time with all items meeting or exceeding my expectations. Cut, clarity and color were very close to the photos and description.

Posted By Bob D in December, 2025
Source: Bizrate

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
Source: Bizrate
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