DG & Co. Jewellery offers wide range of design & custom made Engagement Rings Online. Buy Diamond Engagement Rings from the Melbourne Diamond Company & Jewellers. Shop now!Planning to buy a Engagement Rings Melbourne. DG & Co in Melbourne CBD offers the exquisite diamond jewellery collections including engagement rings, loose diamonds, pendants and necklaces and more. Our stunning collection of diamonds will be sure to add sparkle to your hand and life. If you are looking for some exquisite diamond engagement rings in Melbourne, you can visit DG & Co. We can also custom design your engagement band for you. Call us on 1300 647 778 today.