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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.

Behind the Scenes

Mining Lightning Ridge Opals

Go underground into Australia’s legendary black opal shafts. Witness the traditional mining techniques used to uncover rare gems in the heart of Lightning Ridge, New South Wales.

Mining Boulder Opals at Winton

Watch powerful machinery unearth boulder opals in the rugged fields of Winton, Queensland. Experience the raw beauty of open-cut mining in Australia’s outback.

Cutting a Black Opal

All of our Lightning Ridge Opals are cut by the most experienced opal cutter in the World. Watch him cut this gem blue black opal from rough to polished.

Fast Worldwide Shipping

Free Shipping & Insurance on Orders Over $200
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Trusted Opal Seller

Registered Australian wholesale opal seller
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Ethically Sourced Crafted

Sustainably mined from the Australian outback
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Authentic + Guaranteed

Genuine natural solid Australian opals only
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Reviews

3.06ct Gorgeous Natural Australian Black Opal
3.06ct Gorgeous Natural Australian Black Opal
Jun 12, 2025
This deep purple/blue opal is beautiful and just what I was looking for. Can’t wait to have it set into a piece of jewellery!

Katherine
Australian Natural Black Opal 5.49 ct
Australian Natural Black Opal 5.49 ct
May 5, 2025
The pictures didn’t do justice to the fire of this opal. There is purple, blue and even a little red. Can’t wait to have this set into a pendant.!

Courtney
 Black Opal 1.1 ct, Rare Pattern Multi Color Fire Opal
Black Opal 1.1 ct, Rare Pattern Multi Color Fire Opal
March 1 2025
I have bought several beautiful Australian opals from opalgalaxy and each one has been more beautiful than I ever could have expected. This will make a beautiful ring which I will have mounted in a shadow box type ring so the opal will be protected.

Sharie
Dark Opal 1.2 ct, Red Teardrop Opal 11x9x2 mm
Dark Opal 1.2 ct, Red Teardrop Opal 11x9x2 mm
Oct 12, 2024
Thank you very much!! Incredibly beautiful opal, fast shipping, nicely packaged too.

Caitlin
Rainbow Fire Dark Opal 2.8ct 14 x 9mm
Rainbow Fire Dark Opal 2.8ct 14 x 9mm
Jun 18, 2024
Beautiful stone, lots of fire and flash! Gonna make a breathtaking ring!

Deborah
Harlequin Black Opal 0.92 ct
Harlequin Black Opal 0.92 ct
Apr 25, 2024
My Opal is stunning and after seeing the first I bought two more. So excited to get my stone back from the jeweler all set in diamonds. Very nice polish quality and high quality specimens!!!

Rachael Rocha
Multi Color Black Opal 0.87 ct
Multi Color Black Opal 0.87 ct
Oct 20, 2023
Arrived fast and in perfect condition! Incredible quality! Thanks so very much!

Brett
Black Opal 9.04 ct
Black Opal 9.04 ct
Aug 7, 2024
Arrived quickly. Absolutely beautiful opal. I'm so glad I decided to "go for it." This was a lot of money for me, but I think I have finally found the opal I've been looking for (after several tries). Thank you so much.

holbrookandtom
Neon Orange Green Flash Dark Opal 2.15 ct
Neon Orange Green Flash Dark Opal 2.15 ct
Jun 15, 2023
As presented and described very bright and colourful - excellent service - thank you.

Lynton
Harlequin Pattern Gem Black Opal 2.81ct
Harlequin Pattern Gem Black Opal 2.81ct
Apr 7, 2023
An amazing opal. Thank you very much

Brent
Rainbow Fire Oval Dark Opal Stone 1.46ct
Rainbow Fire Oval Dark Opal Stone 1.46ct
Apr 7, 2023
Beautiful high quality opal quick delivery from the other side of the world. Will definitely be back for more.

Jaye
Sunset Fire Rectangle Shape Australian Dark Opal 3.3 ct
Sunset Fire Rectangle Shape Australian Dark Opal 3.3 ct
Mar 1, 2023
exactly as shown on the website, beautiful opal specimen the colour refraction is better than you could see on the video footage. thank you i am looking foward to having it set in a ring.

anthony
Gem Rainbow Fire Dark opal 11.38ct
Gem Rainbow Fire Dark opal 11.38ct
Feb 19, 2023
A lovely opal. Thank you.

brent
Gem Blue Green Black Opal With Cutting Video 9.73 ct
Gem Blue Green Black Opal With Cutting Video 9.73 ct
Feb 18, 2023
This is the most beautiful blue black opal I have ever seen. The fire is amazing. Please check out this shop. as you will see top quality opals and worth the price. Thank you so much for fulfilling my dream of having a genuine black opal with beautiful blue-green fire. I love it and cannot wait to have my jeweler set it.

Sharie
Gem Rainbow Fire Dark opal 7.53 ct
Gem Rainbow Fire Dark opal 7.53 ct
Dec 11, 2022
Michael is very easy to work with and shipping was very fast. I hope to do more in in future. Good seller.

Thomas L.