The Australian Opal & Diamond Collection

The colour of Australia

Natural Australian opal jewellery — designed and made in Adelaide for over 40 years.

Explore the collection
Crown Princess Mary of Denmark wearing a diamond tiara

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 story of the house

The opals

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New — doublet opal rings

A doublet opal ring gives you bright, dark-backed opal colour without a solid-stone budget — genuine Australian opal, bonded to a dark base that brings out the play-of-colour, set in gold or silver. They're a brilliant first opal ring and a smart everyday choice. Explore the collection below, see the full doublet range, or design your own with our custom jewellery service. (Doublets are best kept from prolonged water — ask us about care.)
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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.

Begin your design

Black opal — the signature

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Adelaide

Diamond jewellery

Bespoke diamond jewellery, designed and crafted for you — engagement rings, pendants and earrings alongside the opals we're known for.

Discover
Sylvia Dimasi in the AODC Fine Jewellery boutique, Adelaide

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.

Visit our showroom

The AODC guarantee

  • Certificate of authenticity

    Every piece is accompanied by our certificate of authenticity.

  • Natural Australian opals

    Genuine, natural stones — black, boulder, crystal and milky opal.

  • Fully insured delivery

    Complimentary tracked and insured delivery, Australia-wide.

  • Adelaide showroom

    See the colour in person at 14 King William Street, Adelaide.

By appointment or walk in

Visit our Adelaide showroom

14 King William Street, Adelaide
Monday to Friday 9:30am – 5:30pm · Saturday 10am – 4pm

Plan your visit