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Home Gemstones Boulder Opal
27.17 ct Multicolor Boulder Opal Gemstone, Boulder Opal Gem in Cushion Cabochon Shape for Sale.
Photos are of Actual Product for Sale
27.17 ct Multicolor Boulder Opal Stone, Natural Boulder Opal in Cushion Cabochon Shape for Sale Boulder Opal Gemstone in 33.3 x 11.9 mm Size for Sale, Boulder Opal Stone in Multicolor Color

27.17ct Multicolor Boulder Opal, Cushion Cut, 33.3x11.9 mm

9.7 out of 10
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Product ID: 523673
Type: Boulder Opal
Weight: 27.17 ct 1 gem
Size: mm calibrated
Size: 33.3 x 11.9 x 6.4 mm
Exact Size: 33.31 x 11.94 x 6.35 mm
Length x Width x Depth
Shape: Cushion Cabochon
Color: Multicolor
Clarity: Opaque
Treatment: Untreated
Origin: Australia
Content: 1 pc
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Product Description

This is a 27.17 carat natural multicolor Boulder Opal gem, 1 pc in cushion shape with an exact size of 33.31 x 11.94 x 6.35 mm. This loose Boulder Opal gemstone was mined in Australia and its clarity is Opaque. No treatment has been applied on this natural Boulder Opal stone

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I was looking for high-quality amethyst on this site, and I was able to compare size, color, and weight in detail before making a purchase.

Posted By Atsuhisa in January, 2026
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Overall Rating -> 9 star ratings

It was fine . Wish there had been more round stones to select from

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Good, hope gem quality is good and genuine

Posted By Varun in May, 2026
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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
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