'Isla' Doublet Opal Earrings 18ct Gold

Opal size: 11mm x 8mm
Opal weight: 4.18 carats
Opal shape: Triangular
Opal type: Doublet opals
Opal colour: Multi-colour
Diamonds: 6 (0.07 carats)
Metal: 18ct yellow gold
SKU: GDE007

We offer reliable and secure standard and express shipping options to ensure your purchase arrives safely and promptly. We also provide easy and hassle-free 30-day returns (subject to our returns policy), allowing you to shop with confidence.

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

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

Please note: The above delivery times are estimates only and do not account for any unforseen customs processing times (international orders) or transit delays.

For full details on shipping times, costs and returns, please visit:

Black Star Opal Shipping Policy

Black Star Opal Returns Policy

Australian doublet opals consist of two layers - a slice of exceptional quality, colourful natural opal set onto a black backing made of resin, ironstone or potch, which darkens the appearance of the gemstone. Doublet opals are suitable for all types of opal jewellery, including gold and silver settings, and are affordable alternatives to solid black opals. 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 for the Australian opal industry.

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 this more information check out our FAQ Page for quick answers.