'Illumia' Solid Crystal Opal

Opal weight: 1.45 carats
Opal size: 10mm x 8mm
Opal shape: Oval
Opal type: Solid crystal opal
Opal colour: Green and gold
Opal origin: Coober Pedy
SKU: AOS47

• Fast dispatch from Australia
• Free insured & tracked global shipping
• 30 day returns - Shop with confidence

We provide free, fully insured and trackable shipping, ensuring your purchase is protected from dispatch through to delivery.

Standard Shipping
Australia: Approx. 2–4 business days
International: Approx. 8–12 business days

Express Shipping
Australia: Approx. 2–4 business days
International: Approx. 5–8 business days

Please note: Delivery timeframes are estimates only and do not include delays caused by international customs processing, transit interruptions or other unforeseen circumstances. Customs fees and import duties may apply to international orders. Orders shipped to the USA valued USD $2500 and under include customs fees.

For full details on shipping and returns, please visit:

Black Star Opal Shipping Policy
Black Star Opal Returns Policy

At Black Star Opal, we specialise in genuine Australian opal jewellery sourced from trusted Australian mining regions and suppliers. With decades of family involvement in the Australian opal industry, our gemstones are carefully selected for their natural beauty, colour and individuality.

Each jewellery piece celebrates the unique character of authentic Australian opal and is presented with care to create a timeless piece designed to be treasured for years to come.

Australian crystal opal is a natural precious opal known for its transparent to semi-transparent body tone and vibrant play-of-colour. Many of the world’s finest crystal opals are mined in Coober Pedy, South Australia, where opal miners have been discovering gemstones since 1915.

Unlike opaque opals, crystal opals allow light to pass through the stone, creating exceptional depth and brilliance. Each crystal opal forms naturally over millions of years, meaning no two stones are ever identical. Read more about Australian opals.

Proper care is crucial to preserve the beauty and brilliance of opal gemstones and opal jewelry. To keep your opal products looking radiant for years, it's essential to follow safe cleaning practices and handle them with care. Read more about how to care for your opal jewellery.

Sustainability is increasingly important in today’s world and holds growing significance within the global gemstone industry. For Australian opals, sustainability goes beyond ethical mining - it encompasses supporting the communities and preserving the unique ecosystems that rely on the opal industry. Read more about why sustainability matters to the Australian opal industry.