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Home Gemstones Boulder Opal
12.72 ct Multicolor Boulder Opal Gemstone, Boulder Opal Gem in Cushion Cabochon Shape for Sale.
Photos are of Actual Product for Sale
12.72 ct Multicolor Boulder Opal Stone, Natural Boulder Opal in Cushion Cabochon Shape for Sale Boulder Opal Gemstone in 24.2 x 9.7 mm Size for Sale, Boulder Opal Stone in Multicolor Color

12.72ct Multicolor Boulder Opal, Cushion Cut, 24.2x9.7 mm

9.7 out of 10
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Product ID: 628051
Type: Boulder Opal
Weight: 12.72 ct 1 gem
Size: mm calibrated
Size: 24.2 x 9.7 x 4.6 mm
Exact Size: 24.17 x 9.70 x 4.62 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 12.72 carat natural multicolor Boulder Opal gem, 1 pc in cushion shape with an exact size of 24.17 x 9.70 x 4.62 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 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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Very good.

Posted By Tommy in December, 2025
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