Andamooka Matrix Opal 70.3carat Solid Hand-Cut

Immerse yourself in the beauty of Australia with this hand-cut solid 70.3ct Andamooka Matrix Opal.

Opal Details:

Total Weight: 70.3cts

Origin: Andamooka, Outback South Australia

Dimensions: 47mm x 25mm x 9mm (approx.)

Shape: Elongated Oval

Colours: Sparkles of every colour of the rainbow 

This opal showcases a nice display of colours. Hand-cut with precision, it embodies the natural beauty and diversity of Australia’s landscapes. 

Please Note: This is a treated Matrix Opal. 

What Is Sugar Treatment and Why Is It Used?

Matrix opal, like this piece, features opal interspersed within its host rock. To bring out its captivating colours, the opal undergoes a sugar treatment—a process where the stone is soaked in a sugar solution, then heated in acid to darken the matrix. This enhances the opal's natural brilliance, creating a stunning contrast that showcases its radiant hues. The result is a breathtaking gem that’s as unique as the landscape it hails from. Sugar treating is only done on Matrix opal. 

Why Choose Andamooka Treated Matrix Opal?

At Iona Opal Australia, we are committed to authenticity and ethical practices. The only treated opal we sell is Andamooka Matrix Opal, ensuring our customers enjoy genuine, sustainably sourced gemstones of the highest quality. Each piece is a testament to the skill and tradition of enhancing nature's beauty while respecting its origins.

Our Coober Pedy, Lightning Ridge, and Queensland Boulder Opals are treatment free. 

Certificates of Authenticity

A digital Certificate of Authenticity is included with all opal pieces over $400 AUD, and available on request for any item. Each certificate confirms the opal’s origin, authenticity, and unique features.

Postage and Shipping Information

Australia: Free insured Express Post with Signature on Delivery. Orders arrive in 2–5 business days.
International: Free insured shipping on orders over $500 AUD (or $30 AUD under $500). Delivery in 7–14 business days.

We ship five days a week with handling times under one day.

USA customers: A 10% import tariff is added at checkout so there are no extra charges on arrival.