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Opal Jewellery
- Opal Engagement Rings
Diamond Jewellery
- Diamond Engagement Ring
Custom
- Our Story
Book A Consultation

+61 451 770 900

One Location · Beehive Corner · 32-34 King William St

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32-34 King William St, Adelaide SA 5000, Australia

+61 451 770 900

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Opal Diamond Factory, established in 1974, is Adelaide’s oldest and largest specialist in opals, diamonds, and coloured gemstones. Founded by opal pioneer John Ryneš, the company evolved from opal mining and cutting in Coober Pedy to crafting bespoke jewellery using Australia’s extensive collections of South Australian crystal and white opals, Queensland boulder opals, and renowned Lightning Ridge black opals. The family-owned business, currently led by Managing Director Mike Saj-Ryneš, integrates ethically sourced GIA-certified diamonds with Australian opals in its custom designs, serving a global clientele. The company is recognized for its craftsmanship, ethical sourcing, and collaborative design process, providing pieces that mark significant life moments. Its flagship showroom is located at Beehive Corner, Adelaide, blending tradition with innovation in jewellery creation. Opal Diamond Factory also holds the distinction of being the official jeweller for the Australian Women’s National Basketball team, “The Opals”.

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Opal Diamond Factory - Opal Jewellery and Diamond Jewellery

32-34 King William St, Adelaide SA 5000, Australia

+61 451 770 900

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