Our collection of South Australian crystal and white opals, Queensland boulder opals and famous Lightning Ridge black opals is the most extensive in Australia.

Amid the hot, red dust of Coober Pedy in South Australia’s far north, opal pioneer John Rynes and son Mike Saj-Rynes discovered a love for Australia’s national gemstone.

The Opal Diamond Factory is home to the Rynes family, who creates jewellery from opals, ethically-sourced GIA certified and other precious stones.

We are proud to have been a part of thousands of stories, from love celebrations and special moments to the creation keepsakes and treasured presents. Collaborating with our customers is at the heart of what we do.

Our success is the result of passion and hard work; whether it be cutting rough opals straight from the mine, or shaping elegant, custom jewellery in our design studio.

To view our exclusive range or design your own custom piece, we invite you to visit our Adelaide showroom, or meet us via a virtual appointment.