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Oval Boulder Opal Gemstones - Natural, Certified

Oval Boulder Opal Weight
Oval Boulder Opal Size
Oval Boulder Opal Clarity
Oval Boulder Opal Price

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Multicolor Oval Boulder Opal
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ID: 302900
Weight: 23.34ct
Size: 20.8 x 14 mm
Clarity: Opaque
Content: 1 pc
Price: $ 215.66
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ID: 679144
Weight: 21.69ct
Size: 23.8 x 14.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 130.14
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ID: 302922
Weight: 32.39ct
Size: 33.7 x 15 mm
Clarity: Opaque
Content: 1 pc
Price: $ 299.28
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Why Buy Oval Boulder Opal from GemSelect?

FAQs

What are oval boulder opal gemstones?

Oval boulder opal gemstones are natural opals from Australia, with vibrant red, blue, or green veins in ironstone matrix. Certified, they’re ideal for bold jewelry.

Are oval boulder opal gemstones treated?

Most oval boulder opal gemstones are untreated, showcasing natural patterns. Some are stabilized or sealed for durability, disclosed in certifications.

What jewelry suits oval boulder opal gemstones?

With a Mohs hardness of 5.5-6.5, oval boulder opal gemstones are best for pendants, earrings, or protected ring settings, perfect for artistic designs.

What color variations exist in oval boulder opal gemstones?

Oval boulder opal gemstones feature brown or gray ironstone with red, blue, green, or multicolored opal veins. Queensland stones show vivid, swirling patterns.

How do I buy oval boulder opal gemstones from GemSelect?

Visit the oval boulder opal gemstones category, select your loose stone by size or pattern, and purchase with secure checkout and worldwide shipping.

Are oval boulder opal gemstones in stock and ethically sourced?

All oval boulder opal gemstones are in stock, ethically sourced from Australia and Brazil, ensuring certified quality and sustainable practices.

What makes oval boulder opal gemstones unique?

Oval boulder opal gemstones stand out for their earthy ironstone matrix, vibrant play-of-color, and October birthstone status, ideal for rugged, unique jewelry.

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

A pleasant experience and many choices to choose from

Posted By Krackenking in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good

Posted By Niska in August, 2025
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Overall Rating -> 9 star ratings

The checkout said the my ccv was invalid. i had to use another card.

Posted By Ron in April, 2025
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Overall Rating -> 10 star ratings

I could see the actual gem I was buying

Posted By Bugs in December, 2025
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Overall Rating -> 10 star ratings

Easy to use website

Posted By Mel in February, 2026
Source: Bizrate

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
Source: Bizrate
Enlarged Gemstone Image