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Home Gemstones Boulder Opal
21.04 ct Multicolor Boulder Opal Gemstone, Boulder Opal Gem in Oval Cabochon Shape for Sale.
Photos are of Actual Product for Sale
21.04 ct Multicolor Boulder Opal Stone, Natural Boulder Opal in Oval Cabochon Shape for Sale Boulder Opal Gemstone in 27.9 x 12.8 mm Size for Sale, Boulder Opal Stone in Multicolor Color

21.04ct Multicolor Boulder Opal, Oval Cut, 27.9x12.8 mm

9.7 out of 10
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Product ID: 321920
Type: Boulder Opal
Weight: 21.04 ct 1 gem
Size: mm calibrated
Size: 27.9 x 12.8 x 6.5 mm
Exact Size: 27.85 x 12.77 x 6.45 mm
Length x Width x Depth
Shape: Oval Cabochon
Color: Multicolor
Clarity: Opaque
Treatment: Untreated
Origin: Australia
Content: 1 pc

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$
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Item is Sold
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Product Description

This is a 21.04 carat natural multicolor Boulder Opal gem, 1 pc in oval shape with an exact size of 27.85 x 12.77 x 6.45 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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Overall Rating -> 9 star ratings

Fast snd easy to find what I was looking for

Posted By Bawb in May, 2026
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Overall Rating -> 8 star ratings

All went as well as previous orders. So far delivery has been as expected.

Posted By ProfBob in September, 2026
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Overall Rating -> 10 star ratings

Always get a nice gemstone. Just like the picture. Never disappointed

Posted By Ron T in June, 2026
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Overall Rating -> 9 star ratings

All good

Posted By Oliver in September, 2025
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Overall Rating -> 10 star ratings

I purchased 4 gemstones in different sizes to be able to make a family ring for my granddaughter. I got exactly what I saw and they are absolutely beautiful! Shipping was quick compared to other gem stores I have dealt with! I will definitely order more stones from your company, as I am a collector and have several stones. You are my new go to company in the future

Posted By Liz in June, 2026
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Overall Rating -> 7 star ratings

Could not get it to work 25 times.

Posted By Dock in July, 2026
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