The Opal Diamond Factory is a luxury jewelry brand that specializes in creating exquisite opal and diamond pieces. Their factory is known for its high-quality craftsmanship and attention to detail, resulting in unique and breathtaking jewelry designs. Opal, a rare and iridescent gemstone, is often paired with diamonds to create stunning combinations. The factory's opal diamond jewelry is highly prized by collectors and connoisseurs worldwide for its exceptional beauty and rarity. If you're looking for a truly special piece, the Opal Diamond Factory is definitely worth considering.

Established in 1974, Opal Diamond Factory is Adelaide’s oldest and largest opal, diamond and coloured gem specialist.

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 Ryneš and son Mike Saj-Ryneš discovered a love for Australia’s national gemstone.

At the Opal Diamond Factory, the Ryneš family crafts jewellery, including bespoke pieces, from opals, ethically-sourced GIA certified diamonds and other precious stones.

We are proud to have played small parts in thousands of stories - from love celebrations and special moments, to the creation of keepsakes and treasured gifts. 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.