9.4ct Solid Andamooka Matrix Opal

Andamooka Matrix Opal – Natural Loose Gemstone

This 9.4ct Andamooka Matrix Opal exudes a mysterious allure, with a deep black base that shimmers subtly with specks of red, blue, and green—like stars scattered across a twilight sky. The smooth, elongated freeform cut enhances its galactic feel, making it a rare and refined addition to any gemstone collection.

Gem Details:

• Total Weight: 9.4 cts

• Origin: Andamooka, South Australia

• Dimensions: 26 mm x 12 mm x 4 mm (approx.)

• Shape: Freeform Oval

• Colours: Inky Black Base with Red, Blue, and Green Sparkle

• Cut: Polished Cabochon

• Treatment: None

• Total Gem Weight: 1.8 g

A captivating gemstone forged from ancient desert, this piece is perfect for collectors and designers seeking depth, elegance, and cosmic energy in one beautiful stone.

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. 

Thinking about turning this opal into a custom piece of jewellery? Iona can help! Whether you’re imagining a pendant, ring, earrings, or something else, get in touch, and Iona will guide you through design options—creating a one-of-a-kind treasure.