black opals category

Black Opals

Boulder Opals

Pipe Opals

Crystal Opals

White Opals

Opal Jewelry

Opal Jewelry


Faceted Opals

Metallic Opals

Concept Designs

Crystal Boulder Opals

Ocean Opals

Rainbow Opals

Discover Australian Opals

Australian Opals are naturally formed gemstones mined in outback Australia. They were formed by hydrated silica (sand) and water from the Great Artesian Basin; a sea that once covered inland Australia. All Australian Opals are unique, one and only, and are prized as one of the most valuable and demanded gemstones in the jewelry and collectors market today.

Authentic Opals, Guaranteed!

All of our opals are either mined by our team or miners that we know and trust. We guarantee that all of our opals are authentic, natural and ethically sourced. Australian Opals are governed by strict sustainability laws. We also promise that our opals are not treated. We do not sell opal doublets or opal triplets; they are all full, solid opals from Australia. We also offer a lifetime guarantee for natural cracks that may form in our opals.

Secure Shipping

All purchases over $200 on our website come with complimentary shipping and insurance. We ensure all opals are sent in secure, well packed parcels with low declared values. Upgrades on shipping are available to both EMS and Fedex, and can be offered as complimentary with higher value purchases.

Learn about opal mining

Play Video
Play Video

About Us

Established in 2012, Opal Galaxy is one of the leading wholesale Australian opal sellers online. All the opals that we sell are 100% natural and untreated. They are all ethically sourced from the Australian outback and cut by some of the most experienced opal cutters on Earth. We specialize in Australian opals sourced from both Lightning Ridge and Winton. These include black opalsdark opalscrystal opalsboulder opals and crystal boulder opals.

Our Mission

We strive to offer the best quality black opals and boulder opals online at reasonable prices. Empowering beauty through Australia’s national gemstone, our mission is to bring the exquisite allure of opals to life by curating and providing a diverse collection of ethically sourced, high-quality opals. We are committed to fostering a deep appreciation for the natural wonders of Australia while delivering exceptional value and service to our customers. With integrity, sustainability, and a passion for the artistry of opals and opal cutting, we aim to be your trusted partner on your journey to adornment and self-expression with Australian opals.