River Gemz specialises in expertly hand-crafted jewellery made from quality natural Australian solid opals, cut into either freeform shapes or calibrated to maximise their unique attributes.

The River Gemz shop is in the picturesque town of Mannum, along the banks of the beautiful Murray River in South Australia.

More about us

NEW BRACELET DESIGN

This time we decided to go with a leather wristband which is more comfortable for day to day use. The highlight of the leather bracelets is the array of different types of crystal opal; set in handcrafted sterling silver centrepieces or if you prefer gold nuggets with a purity of 96%-98%, we have that option too!

Adorn your wrist with a touch of daily luxury and let your Australian opal/gold nugget shine!

_

The River Gemz family

Siblings Harri, Marjut and doggies Nano & Dewi

_______

-> Check out the official announcement here!

View our bracelets here

Jewellery

View all

Loose Australian Opals

Explore our collection of unset solid natural opals for sale, featuring genuine Australian opals carefully selected for colour, pattern and quality. These loose opals are ideal for jewellery making, gemstone collecting, or custom ring and pendant designs.

At River Gemz we specialise in solid natural opals, meaning the gemstone is a single piece of natural opal rather than a doublet or triplet. Our range includes a variety of Australian opal types, with stones available in many shapes, sizes and colour patterns.

This collection includes both unset single opals and opal parcels, making it suitable for jewellers, collectors and gemstone enthusiasts alike. Whether you are searching for an individual opal for a custom jewellery piece or a parcel of stones for creative projects, you can explore a wide selection here.

Browse our range of natural loose Australian opals from a trusted family opal business with decades of experience.

View all

Homeware

View all

All Products

View all
We would like to acknowledge the Ngangaruku people who are the Traditional Custodians of this land. We would also like to pay respect to the Elders both past and present of the First Nation and extend that respect to other Aboriginal people present.