“Our family has been crafting the finest pieces from opals and diamonds for over 45 years. But that is nothing compared to the six million years it takes to create an opal” Opal Diamond Factory

For over 45 yeas Opal Diamond Factory has been Adelaide’s oldest and largest opal diamond specialists. Established in 1974 by opal pioneer John Ryneš, we are a second-generation family-owned manufacturing jeweller and opal cutter.

Specialising in custom made jewellery, we love working with our clients to create that special piece they have been looking for. Whether you’re wanting to create a bespoke engagement ring or looking to remodel an old treasure, we guarantee a tailored and original experience.

Mike Saj-Rynes, John’s son continues the family legacy and is now managing director of ODF. Growing up in the opal fields of Coober Pedy, Mike watched his father mine, cut and then hand make opal jewellery! For over 20 years Mike has worked along side his father who passed on his opal knowledge, skills and wisdom.

“Being based in Adelaide and having formed strong relationships with the miners over the years, has allowed us to create the most amazing pieces for our clients. I’m proud of my father for what he has accomplished in the opal industry. We are so grateful to be able to carry on from the foundations he created. To be able to first work together with him and now my sister, Anna and wife Melanie is something special. Being a true family business allows us to maintain the highest standards in customer service and manufacturing. For over 45 years we have been creating the most exquisite pieces. There is a real person behind each piece.” Mike Saj-Rynes

Located in the heart of city, King William Street, Adelaide, South Australia, in the iconic Beehive Corner.

We welcome you to come visit our Adelaide showroom to view our extensive range and Adelaides largest opal diamond collection.

Have a look on Facebook,  Instagram and online shop to see our latest creations!




View ​our ​stunning ​jewellery ​collection

Our Stories

Check out our amazing team

Our work is on Instagram

- @opaldiamondfactory