Collection: Boulder Opals

Boulder Opals for Sale

Explore our collection of natural Australian boulder opals for sale, including both loose boulder opals and boulder opal jewellery. Sourced from the renowned opal fields of Queensland, boulder opals are prized for their vibrant play of colour against their natural ironstone backing, making every stone completely unique.

At River Gemz we offer a carefully curated selection of unset boulder opals ideal for jewellery making, custom designs, or gemstone collecting. You’ll also find beautifully crafted boulder opal jewellery, including rings, pendants and other pieces that showcase the natural brilliance of Australian opals.

Each opal is individually photographed so you can clearly see the colour, pattern and character of the stone or jewellery piece before purchasing. Whether you are searching for a loose gemstone or a finished jewellery piece, our collection highlights the natural beauty that makes Australian boulder opals among the world’s most sought-after gemstones.

Browse our range of natural boulder opals and boulder opal jewellery to discover one-of-a-kind pieces from a trusted family opal business.