'Catriona’ Crystal Opal Earring 18ct Gold

Opal size: 8mm x 5mm
Opal shape: Teardrop
Opal type: Solid crystal opals
Opal colour: Multi-colour
Opal origin: Coober Pedy
Diamonds: 4 (0.06 carats in total)
Metal: 18ct yellow gold (2.16 grams)
SKU: GOE032

• 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

Have questions about opals, payments, shipping or returns? Our FAQ page has all the answers you need, including ring sizing, gift wrapping, and caring for your opal. For more information check out our FAQ Page.

Black Star Opal is part of a family-owned Australian opal business founded in Lightning Ridge in 1969. Backed by more than 50 years of specialist expertise, we carefully select genuine Australian opals and distinctive opal jewellery for their authenticity, quality and individual character. You can also visit us at our Australian retail store, The Opal Centre, at the Big Banana on the Coffs Coast. Explore our story.

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 crystal 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. Find out why sustainability matters for the Australian opal industry.