Silver Herkimer Diamond Quartz Stackable Gemstone Ring

• 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 for quick answers.

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. Discover our story.

Authentic Australian opals feature solid, doublet and triplet stones in endless combinations of colours and patterns. With four main types of solid opals - black, crystal, white and boulder - this gemstone is one of the most fascinating on earth. Read more about opals here.

Proper care is crucial to preserve the beauty and brilliance of opal gemstones and opal jewellery. While opals are stunning, they are also delicate and can be vulnerable to damage from improper wear, harsh chemicals or abrasive materials. To keep your opal jewelry 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.