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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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Loose Boulder Opal - Solitaire
Located in Greensboro, NC
Stone Information
Natural Boulder Opal
Origin: Australia
Measurements
Condition: Pre-Owned
Category
21st Century and Contemporary Loose Gemstones
Materials
Opal
BUNDA 24.21ct Boulder Opal in silver
By Ben Bunda
Located in SYDNEY, AU
A BUNDA 'Couture' Boulder Opal pendant in sterling silver, featuring an Australian boulder opal, predominately blue, red and brown in colour.
Category
2010s Australian Necklace Enhancers
Materials
Opal, Silver
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.
Category
21st Century and Contemporary Fashion Rings
Materials
Diamond, White Diamond, Opal, 18k Gold, Yellow Gold
Boulder Opal, Emerald and Lapis Earrings
By Tinguely Bijoux
Located in Boston, MA
Gorgeous trio of custom cut Boulder Opal, sliced Emerald and Afghani Lapis Lazuli set in 18 karat gold.
Category
21st Century and Contemporary American Contemporary Drop Earrings
Materials
Emerald, Lapis Lazuli, Opal, 18k Gold
Platinum Boulder Opal Ballerina Ring with Diamonds
Located in Coral Gables, FL
Sized at 6.5 and weighing 12.5 grams, this exceptional platinum ring brings together the individuality of natural boulder opal with timeless diamond accents.
Details
Metal: Platinu...
Category
Late 20th Century Japanese Cocktail Rings
Materials
Diamond, Opal, Platinum
Boulder Opal Silver Ring
Located in Berlin, DE
This sterling silver ring features an elegant Boulder Opal sourced from Australia, selected for its refined color play and naturally sculpted form.
Category
2010s German Artisan Engagement Rings
Materials
Opal, Silver
