'Koa' Silver Chrysocolla and Malachite Gemstone Ring

Gemstone Origin: South America
Gemstone Size: 22mm x 20mm
Gemstone Colours: Turquoise-Blue and Green
Ring Size: O
Ring Metal: Sterling Silver
SKU: GEMR80

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

Malachite is a striking green gemstone prized for its rich colour and distinctive banded patterns. A copper carbonate mineral, it has been used in jewellery and ornamentation for thousands of years, symbolising transformation, protection, and healing.

With its deep, swirling shades of green, Malachite is believed to absorb negative energy and promote emotional balance. Each stone is unique, with natural patterns that make every piece of Malachite jewellery one-of-a-kind.

Whether set in silver or gold, Malachite adds a bold and earthy elegance to any collection, perfect for those drawn to its powerful presence and timeless natural beauty.

Have questions about gemstone jewellery, 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.