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The Rare & The Real

Australian Diamond Valley is grounded in the rare and the real. We specialise in investment-grade Argyle-origin diamonds and only Australian sapphires, opals and pearls.
We are passionate about Australian gemstones, to either be kept as objects of enduring value or crafted into finished pieces. Within our Sydney workshop, designers and master craftspeople work together to create jewellery that is loved for a lifetime.
ADV. For Collectors & Creators.

Argyle-origin certified

Provenance verified, every stone

Sydney workshop

Crafted in-house since 1977

ADV diamond verification

Certificate review & authentication on every purchase

Lifetime warranty

Complimentary resizing, always included

40+ years experience

Trusted by generations of Australians

AUTHENTICALLY ARGYLE

The rarest diamonds on earth. Now rarer still.

The Argyle mine closed in 2020 — permanently. Every pink, blue, red and champagne diamond from the world's most celebrated source has already been unearthed. What remains is all there will ever be.

Whether you are acquiring a stone to keep, to craft into something worn and passed down, or to hold as a rare piece of natural history — we are here to guide you with honesty and expertise.

Explore Loose Argyle Diamonds

Begin Your Journey

What Our Clients Say

"One of my favourite purchases from ADV, the blue in this diamond is gorgeous, knowing it is Australian just makes it even better." - J.C.

Read Our Reviews

Searching for something truly unique?

Work with our gemstone specialists to design a bespoke engagement ring or source a rare diamond.

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The ADV Experience

Australian Craftsmanship

Based in the historic Trust Building, Sydney, we have been handcrafting fine jewellery in Australia for generations, celebrating the enduring beauty of local materials and expert workmanship.

Certified Argyle Diamond Specialists

We source and craft genuine Argyle origin diamonds, certified for authenticity and provenance, ensuring your jewellery is rare, collectible, and ethically sourced.

Over 40 Years of Family Jewellery Expertise

With more than forty years of family jewellery expertise, we blend traditional craftsmanship with contemporary design to create timeless, heirloom-quality pieces.

Complimentary Resizing & Bespoke Adjustments

Every ring, bracelet, or necklace can be tailored to your perfect fit. We offer free resizing and bespoke adjustments to ensure your jewellery is uniquely yours.

Lifetime Manufacturing Warranty

All pieces are backed by our lifetime warranty against manufacturing faults. For everyday wear-related damage, we provide professional repairs with a transparent quote.