Opal Diamond Factory

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

Established in 1974 in the Opal capital of the world, Coober Pedy, and now situated in Adelaide’s iconic Beehive Corner, Opal Diamond Factory is Adelaide’s oldest and largest opal and diamond specialist, specialising is custom made pieces. 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.

01/06/2026

SHINY & CHIC ✨

Crafted with delicate marquise-shaped opals, a sparkling diamond and set in 14K yellow gold, this cross pendant has become one of our best sellers for those special occasion gifts. Shiny & chic it’s a piece designed to be cherished for years to come
⁠⁠⁠⁠⁠

32-34 King William Street Adelaide⁠
OPALDIAMONDFACTORY.COM.AU

MAKE A STATEMENT ✨Some say opal chooses you, not the other way around. So when a beautiful larger-sized light opal finds...
31/05/2026

MAKE A STATEMENT ✨

Some say opal chooses you, not the other way around. So when a beautiful larger-sized light opal finds its way to us, the only option is to turn it into a true statement ring - one made to be noticed, admired and treasured for years to come.
⁠⁠⁠⁠⁠

32-34 King William Street Adelaide⁠
OPALDIAMONDFACTORY.COM.AU

28/05/2026

BOLD AND BEAUTIFUL 💫

FEATURED: 18K yellow gold solid Allan's Rise Crystal Opal drop-earrings.
⁠⁠⁠⁠⁠

32-34 King William Street Adelaide⁠
OPALDIAMONDFACTORY.COM.AU

T H R O W  B A C K  T H U R S D A Y 🔙Back to the 90’s, when the Tour Down Under was on and we were slinging sausages whi...
27/05/2026

T H R O W B A C K T H U R S D A Y 🔙

Back to the 90’s, when the Tour Down Under was on and we were slinging sausages while selling opals on Adelaide’s Rundle Street. So much history, so many memories - all built with family and friends.
⁠⁠⁠⁠⁠

32-34 King William Street Adelaide⁠
OPALDIAMONDFACTORY.COM.AU

25/05/2026

BUTTERFLY EFFECT 🦋

Whether it’s a present, a souvenir, or simply something for yourself, this butterfly Doublet Opal is the perfect way to remember Australia, gift to someone who believes butterflies bring good luck, or just because you want it!
⁠⁠⁠⁠⁠

32-34 King William Street Adelaide⁠
OPALDIAMONDFACTORY.COM.AU

ROUGH OPAL 🩵Rough opal is opal in its natural, uncut form straight from the earth before it has been shaped, polished, o...
24/05/2026

ROUGH OPAL 🩵

Rough opal is opal in its natural, uncut form straight from the earth before it has been shaped, polished, or set into jewellery. It can look quite plain on the outside, often covered in ironstone, sandstone or potch (common opal), but once cut open it may reveal the incredible flashes of colour opals are famous for.
Jewellers and cutters study rough opal carefully to decide:
-where the colour bar sits
-the best shape to cut
-whether it will become a solid opal, doublet, carving or inlay piece⁠⁠⁠⁠⁠

32-34 King William Street Adelaide⁠
OPALDIAMONDFACTORY.COM.AU

21/05/2026

FOR WHEN YOU SAY "I DO" 💍

A wedding band with Lightning Ridge Black Opal? Yes please! A bold twist on tradition, this striking piece brings together timeless design with the unmistakable colour play only Black Opal can offer.⁠⁠⁠⁠⁠

32-34 King William Street Adelaide⁠
OPALDIAMONDFACTORY.COM.AU

CUSTOM CREATIONS 💫Step into our showroom and let us help you create your next jewellery piece. Our experienced staff wil...
20/05/2026

CUSTOM CREATIONS 💫

Step into our showroom and let us help you create your next jewellery piece. Our experienced staff will guide you through our bespoke process, ensuring every detail is considered and beautifully executed. His & Hers gold plated Inlay Opal rings for our lovely customers.
⁠⁠⁠⁠⁠

32-34 King William Street Adelaide⁠
OPALDIAMONDFACTORY.COM.AU

18/05/2026

THE BOULDER DUO ✨

Boulder Opal is one of nature’s true originals, with every free form shape telling its own story. Finding a pair that matches so beautifully is something truly special. Bezel set in 9K yellow gold, these earrings are made to impress and impossible to overlook.
⁠⁠⁠⁠⁠

32-34 King William Street Adelaide⁠
OPALDIAMONDFACTORY.COM.AU

DIAMOND TENNIS 🤍They're in fashion, and the hype around diamond tennis jewellery isn't going anywhere ✨Let us custom cre...
17/05/2026

DIAMOND TENNIS 🤍

They're in fashion, and the hype around diamond tennis jewellery isn't going anywhere ✨

Let us custom create the perfect piece for you.
⁠⁠⁠⁠⁠

32-34 King William Street Adelaide⁠
OPALDIAMONDFACTORY.COM.AU

Address

32-34 King William Street
Adelaide, SA
5000

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm
Saturday 9am - 5pm
Sunday 11am - 3pm

Telephone

+61451770900

Alerts

Be the first to know and let us send you an email when Opal Diamond Factory posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.

Contact The Business

Send a message to Opal Diamond Factory:

Share