Established in 1974 by opal industry pioneer John Ryneš, we are a second-generation family-owned jeweller specialising in opals and diamonds. Our collections and exquisite custom jewellery are handmade. You are very welcome in our King William Street shop; please join us on a personalised tour of our rare opal and certified diamond collections

At Opal Diamond Factory we specialise in custom creations tailored to your very own desires and requirements. Whether you can visit our Adelaide showroom or are interstate or overseas we take pride in making the process simple, transparent and seamless. You can confidently trust our knowledge and expertise in creating your one of a kind piece. We work together with you during the entire process from the initial consultation to the completion of your custom piece to ensure your vision becomes a reality.