About Us

Founded in 1974 by master jeweller Edward Swaab, Certified Diamond Network has grown into one of Parramatta's most respected jewellery studios. With over forty years of experience, our award-winning designers and craftsmen blend timeless elegance with contemporary flair. Every piece that leaves our workshop is a testament to dedication, precision, and an unwavering commitment to quality. Our story is rooted in passion, craftsmanship, and an enduring belief that jewellery should tell a personal story. Our commitment extends to ethical sourcing and transparent trade practices. We celebrate every milestone with our clients.
At the heart of our studio lies the art of bespoke creation. Each custom ring, pendant, or earring begins with a collaborative conversation, capturing your vision and translating it into design. Master jeweller Edward Swaab meticulously handcrafts every element on site, ensuring that the final piece not only reflects your unique style but also showcases the highest standards of durability and sparkle. The result is jewellery that feels as individual as the wearer.
Our exclusive diamond and gemstone brokerage service guarantees access to the finest gems from trusted industry experts. We source only the top tier stones that meet rigorous quality standards, allowing us to offer diamonds and colored gems that are both beautiful and valuable. This direct procurement ensures a transparent pricing model and gives our clients confidence that every purchase is a sound investment in both aesthetics and long-term value.
Beyond the creation of stunning jewellery, we pride ourselves on comprehensive after-sales care. From routine maintenance and resizing to repair and restoration, our in-house team is dedicated to preserving the beauty of your pieces for generations. Customers frequently share stories of cherished heirlooms restored by our craftsmen, underscoring the lasting value of our workmanship and the trust we earn. Choosing Certified Diamond Network means choosing a lifelong partnership built on quality and care.