Certified Diamond Network is the leading supplier in Sydney of wholesale diamonds and exquisitely hand-made custom jewelry of the highest quality. We are experts in diamond engagement rings and diamond wedding rings, but we also design and develop a wide assortment of other designs of jewellery. We make all our jewellery by hand in our design studio and do not outsource this to any third parties, which gives us complete control of the top quality of our custom engagement rings and other types of jewellery. For almost twenty years we have been supplying beautiful jewellery of the highest quality in Sydney, but we deliver our creations throughout Australia. If you are searching for an engagement ring or wedding ring that is different, then talk to our jewellery designing experts right now and contact us on Tel: (02) 9689 3396, and let us create a design that will help make you feel as individual as you are.