100% Solid Australian Opals • Carefully Selected & Finished in Australia • Direct from our Family Business — No Retail Markup • Worldwide Delivery
10.2ct Andamooka Matrix Opal Pendant Necklace ~ 'Eyre Peninsula Glow' | 925 Sterling Silver | Solid Australian Opal
Free shipping within Australia and flat rate international delivery.
Sourced from Australia’s best opal fields. Carefully selected, cut and finished by our family in Queensland.
⭐ Trusted by opal lovers worldwide with a 4.9 star rating
Immerse yourself in the beauty of Australia with this hand-cut solid 10.2ct Andamooka Treated Matrix Opal 925 Sterling Silver Pendant.
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 Opals, Lightning Ridge Opals and Queensland Boulder Opals are treatment free.
Opal Weight 10.2ct
Opal Dimensions 17mm x 14mm x 4mm (approx.)
Origin Andamooka, South Australia
Brightness
Body Tone
Shape Rectangle
Colours
Metal Type 925 Sterling Silver
Chain Type 925 Silver 50cm
Earring Type
✔ Solid Australian opal (no doublets or triplets)
✔ Hand-cut and set in Australia
✔ Certificate of Authenticity provided
✔ Fully insured shipping
✔ One of a kind
✔ Priced direct from the cutter and maker — no retail markup
This is the exact piece you’ll receive. Only one exists — once it’s gone, it’s gone.
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✔ Sourced from Australia’s best opal fields and carefully selected, cut and finished by our family
✔ Certified Opal Specialists · IGS Member · Opal Association of Australia
✔ Fully insured worldwide shipping
✔ Straightforward return policy
✔ Pay in instalments with Zip, Klarna & PayPal
Opal colour will change depending on lighting — this is part of what makes each stone unique.
FINDING YOUR PERFECT FIT?
Not sure of your ring size? Visit our Size Guide to help you find your perfect fit before you buy.
You will receive the exact piece shown in these photos.
Each opal or jewellery piece is individually photographed and completely one-of-a-kind — no stock images, no substitutions.
Certificates of Authenticity
Every piece of jewellery and loose opal includes a digital Certificate of Authenticity, confirming its genuine Australian opal provenance. Your certificate is available for download from your order confirmation page following purchase.
Postage and Shipping Information
Australia: Express Post is FREE. Orders generally arrive in 2–5 business days.
International: $35AUD Standard Post. Orders generally arrive 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.
