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Welcome to Diamond Gallery Co, your trusted destination for beautifully handcrafted jewellery in Sydney. Located in the heart of the Designer Shopping Precinct at 64 Castlereagh Street, our studio sits above Bvlgari and beside Chanel. This elegant location reflects our deep appreciation for luxury, style, and timeless beauty.
A Warm Welcome Awaits You
When you visit our Sydney jewellery showroom, you’ll be greeted with a warm smile and a personal touch. At Diamond Gallery Co, we believe every piece of jewellery should tell a story – your story. Whether you are designing an engagement ring, choosing a special gift, or finding a treasured keepsake, our team is here to guide you every step of the way.

We take the time to understand what you are looking for, offering a friendly and personalised jewellery design consultation. Our goal is to help you find or create something that truly feels like you – elegant, timeless, and made with care.
If you would like to visit, please call us on 1300 112 751 or simply book an appointment. We would be delighted to welcome you into our Sydney studio.
Experience and Craftsmanship You Can Trust
With over 30 years of experience, Diamond Gallery Co has built a proud reputation for exceptional craftsmanship and honest service. Every piece we make is lovingly handcrafted right here in Australia by skilled jewellers who take pride in their work.
Our founders, Michael and Vince, bring a wealth of experience and creativity to each design.
- Michael, an award-winning jeweller, has spent more than three decades perfecting his craft. His careful attention to detail and passion for perfection have brought happiness to thousands of clients.
- Vince, with over 20 years of design experience, has a unique gift for transforming ideas into stunning, meaningful jewellery. His eye for balance, beauty, and proportion shines through in every creation.
Together, they formed Diamond Gallery Co, where traditional craftsmanship meets thoughtful design. Their shared commitment to quality, artistry, and customer satisfaction ensures that each piece is as special as the person who wears it.
Australian Owned and Made
We are proud to be Australian-owned and operated, with every piece of jewellery handcrafted in Australia. Our in-house team of jewellers and designers ensures that each creation meets the highest standards of quality and excellence.
By keeping all our work local, we support Australian craftsmanship and guarantee that every item is made with care, precision, and pride. This dedication to local production means your jewellery not only looks beautiful but also carries the mark of true Australian artistry.
Materials and Guarantee
At Diamond Gallery Co, we believe that true beauty comes from honesty and integrity. We use only the finest materials, including ethically sourced, conflict-free diamonds, gemstones, and precious metals. This ensures that every piece we create is not only stunning but also made with respect for people and the planet.
Our lifetime manufacturing guarantee is a promise of our commitment to excellence. It reflects the trust we place in our craftsmanship and our dedication to providing lasting value to every customer.
Find Your Perfect Piece

Whether you’re searching for the perfect engagement ring, a diamond pendant, or a custom-designed jewellery piece, we’re here to help you find exactly what you’re looking for. Our team will work closely with you to create something truly special – a piece that reflects your taste, your story, and your love.
Visit our Sydney showroom today and experience the warmth, skill, and artistry that make Diamond Gallery Co one of the most trusted names in Australian jewellery.
📞 Call us on 1300 112 751 or book an appointment online to begin your journey towards finding your perfect piece.

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