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Home Gemstones Boulder Opal
20.92 ct Multicolor Boulder Opal Gemstone, Boulder Opal Gem in Oval Cabochon Shape for Sale.
Photos are of Actual Product for Sale
20.92 ct Multicolor Boulder Opal Stone, Natural Boulder Opal in Oval Cabochon Shape for Sale Boulder Opal Gemstone in 25.5 x 14.9 mm Size for Sale, Boulder Opal Stone in Multicolor Color

20.92ct Multicolor Boulder Opal, Oval Cut, 25.5x14.9 mm

9.7 out of 10
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Product ID: 300454
Type: Boulder Opal
Weight: 20.92 ct 1 gem
Size: mm calibrated
Size: 25.5 x 14.9 x 6.3 mm
Exact Size: 25.45 x 14.85 x 6.26 mm
Length x Width x Depth
Shape: Oval Cabochon
Color: Multicolor
Clarity: Opaque
Treatment: Untreated
Origin: Australia
Content: 1 pc
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Product Description

This is a 20.92 carat natural multicolor Boulder Opal gem, 1 pc in oval shape with an exact size of 25.45 x 14.85 x 6.26 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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GemSelect Certified Store Reviews

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

Overall Rating -> 10 star ratings

Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.

Posted By RenoRose in January, 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 -> 7 star ratings

easy interface for a pricless buy

Posted By Zeak in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection, using for custom jewlery for my wife.

Posted By Smitty in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good, hope gem quality is good and genuine

Posted By Varun in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Love beauty, color, quality, and price of these gems. Personal projects and will come here soon and everytime.

Posted By Darkstar in June, 2025
Source: Bizrate
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Enlarged Gemstone Image