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Home Gemstones Black Opal
3.55 ct Multicolor Black Opal Gemstone, Black Opal Gem in Marquise Cabochon Shape for Sale.
Photos are of Actual Product for Sale
3.55 ct Multicolor Black Opal Stone, Natural Black Opal in Marquise Cabochon Shape for Sale Black Opal Gemstone in 16.5 x 8.6 mm Size for Sale, Black Opal Stone in Multicolor Color

3.55ct Natural Multicolor Black Opal, Marquise, 16.5x8.6 mm

9.7 out of 10
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Product ID: 744024
Type: Black Opal
Weight: 3.55 ct 1 gem
Size: mm calibrated
Size: 16.5 x 8.6 x 5.6 mm
Exact Size: 16.53 x 8.56 x 5.55 mm
Length x Width x Depth
Shape: Marquise Cabochon
Color: Multicolor
Clarity: Opaque
Treatment: Smoked
Origin: Ethiopia
Content: 1 pc
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Product Description

This is a 3.55 carat natural multicolor Black Opal gem, 1 pc in marquise shape with an exact size of 16.53 x 8.56 x 5.55 mm. This loose Black Opal gemstone was mined in Ethiopia and its clarity is Opaque.

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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
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I was able to find what I've been looking for.

Posted By Tree Dog in April, 2026
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I love the ability to choose from many options of shapes, gemstone type, color, and so forth. It is fun!

Posted By Geof in November, 2025
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Having purchased gemstones from GemSelect before, I knew what to expect. I did find tracking information difficult to find, but beyond that, the experience was very satisfying and I will visit the website again in future.

Posted By L P in September, 2026
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Very neat and to the point

Posted By Botha in March, 2026
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Overall Rating -> 10 star ratings

Great selection. Maybe too great i kept adding and deleting stuff because i found better looking ones

Posted By Edsor works in October, 2025
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