The Australian Opal & Diamond Collection
The fire of Australia
Natural Australian opal jewellery — designed and made in Adelaide for over 40 years.
Explore the collection
Worn by royalty
Designed for a princess
The Australian Opal and Diamond Collection has had the honour of designing and creating bespoke opal jewellery for Denmark's Crown Princess Mary.
The opals
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Black Opals Adelaide
Black opal is the rarest and most prized of all opals —...
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Crystal Opals Adelaide
Crystal opal is treasured for its clarity: a transparent to translucent body...
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Boulder Opals Adelaide
Boulder opal forms in the cracks and cavities of ironstone in outback...
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Milky Opals Adelaide
Milky, or white, opal has a light body tone and a soft,...
Bespoke
Opal engagement rings
A ring that exists nowhere else in the world — designed with you around a natural Australian opal, and made to be worn for life.
Black opal — the signature
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9Kt Yellow Gold Black Opal Ring 2.67Ct
Regular price $15,500.00Regular priceUnit price per -
18K Yellow Gold Black Opal Ring 1.45CT
Regular price $4,950.00Regular priceUnit price per -
18K Yellow Black Opal Ring 1.74CT
Regular price $22,000.00Regular priceUnit price per -
18K White Gold Black Opal with Diamond Ring 1.29CT
Regular price $7,290.00Regular priceUnit price per
Adelaide
Diamond jewellery
Bespoke diamond jewellery, designed and crafted for you — engagement rings, pendants and earrings alongside the opals we're known for.
The house
Family owned for over 30 years
Our passion for opal gemstones has driven AODC's commitment to crafting exquisite, high-quality Australian opal jewellery — including rare black opals from Lightning Ridge, New South Wales, alongside crystal, boulder and milky opals. Every piece is chosen or made with the care of a family business.