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What is an Australian boulder opal?
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An Australian boulder opal is an opal mined from a large ironstone boulder under the ground. This type of opal is the second most valuable opal behind the black opal. Spot an Australian boulder opal by checking for a solid layer of brown ironstone left on the back of the stone. Shop Australian boulder opals on 1stDibs.
1stDibs ExpertAugust 17, 2021
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BUNDA 24.21ct Boulder Opal in silver
Located in SYDNEY, AU
A BUNDA 'Couture' Boulder Opal pendant in sterling silver, featuring an Australian boulder opal
Category
2010s Australian Necklace Enhancers
Materials
Opal, Silver
Boulder Opal from Australia
Located in New York, NY
This exceptional 116-carat Boulder Opal from Queensland, Australia, displays a mesmerizing play of
Category
2010s Australian Natural Specimens
Materials
Opal
Boulder opal pendent
Located in Bad Kissingen, DE
features an impressive boulder opal adorned with a silver frog set with bright red sapphires. A leaf made
Category
21st Century and Contemporary German Pendant Necklaces
Materials
Silver
Boulder Opal from Australia – 191.95 ct
Located in New York, NY
This elegant Boulder Opal from Australia exudes sophistication with its delicate webbing of vibrant
Category
2010s Australian Natural Specimens
Materials
Opal
Boulder Opal Diamond Gold Ring
Located in Beverly Hills, CA
A magnificent ring featuring a 14.15 carat boulder opal bezel with exceptional play of color. The
Category
21st Century and Contemporary Fashion Rings
Materials
Diamond, White Diamond, Opal, 18k Gold, Yellow Gold
Boulder Opal from Australia – 397.45 ct
Located in New York, NY
This magnificent Boulder Opal from Australia is a true masterpiece of nature, showcasing a
Category
2010s Australian Natural Specimens
Materials
Opal
