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11.09 ct Multicolor Boulder Opal Gemstone, Boulder Opal Gem in Trillion Cabochon Shape for Sale.
Photos are of Actual Product for Sale
11.09 ct Multicolor Boulder Opal Stone, Natural Boulder Opal in Trillion Cabochon Shape for Sale Boulder Opal Gemstone in 20.3 x 16.2 mm Size for Sale, Boulder Opal Stone in Multicolor Color

11.09ct Multicolor Boulder Opal, Trillion, 20.3x16.2 mm

9.6 out of 10
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Product ID: 744113
Type: Boulder Opal
Weight: 11.09 ct 1 gem
Size: mm calibrated
Size: 20.3 x 16.2 x 5.1 mm
Exact Size: 20.25 x 16.24 x 5.13 mm
Length x Width x Depth
Shape: Trillion Cabochon
Color: Multicolor
Clarity: Translucent
Treatment: Untreated
Origin: Australia
Content: 1 pc
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Product Description

This is a 11.09 carat natural multicolor Boulder Opal gem, 1 pc in trillion shape with an exact size of 20.25 x 16.24 x 5.13 mm. This loose Boulder Opal gemstone was mined in Australia and its clarity is Translucent. No treatment has been applied on this natural Boulder Opal stone

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Was a good experience.

Posted By Tim in July, 2025
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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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It was a good experience looking for and finding a nice amethyst stone

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All good

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