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
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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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 of The Australian Opal & Diamond Collection

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 fire 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