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What is an Australian boulder opal?
1 Answer
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
Australian Boulder Opal Necklace
Located in Chesterland, OH
The necklace is 19 inches (48 cm) long, and the smooth round beads are 14mm in size.
Boulder opals
Category
21st Century and Contemporary American Beaded Necklaces
Materials
Opal, Sterling Silver
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 – 116 ct
Located in New York, NY
This exquisite Boulder Opal from Australia showcases a vibrant play of colors, featuring electric
Category
2010s Australian Natural Specimens
Materials
Opal
Collection Boulder opal pendants with silver
Located in Delft, NL
Collection Boulder opal pendants with silver
Nine small boulder Opal pendants with silver eyelets
Category
Late 20th Century Oceanic Collectible Jewelry
Materials
Opal
$1,096 / set
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
