18ct White Gold 0.42ct Diamond 3mm Wedding Ring. CGN-099. This beautiful wedding band is lovingly crafted from 18ct white gold and set with 0.42cts of brilliant cut white diamonds, adding luxury and sparkle. The 3mm band is crafted for comfort and durability, making this ring perfect for everyday wear.  At C W Sellors, we have an expert team of diamond specialists who handpick and grade each jewel to meet our high standards and a team of talented in house designers who combine their talents to bring you our exclusive Diamond collection. Chosen for their rare white quality, each diamond we use has a minimum clarity of VS and minimum colour of G-H. You can find other diamond rings and wedding bands to complement this ring online and in store. All articles purchased from C W Sellors are lovingly and securely dispatched with our elegant jewellery packaging.