18ct White Gold Diamond Set Ladies Wedding Ring. An intricately designed 18ct white gold band with a half band of inset diamonds to give a little sparkle. Width 3mm. Diamond Information - Carat weight-0.15pt, Colour-I, Clarity-I3, Cut-Brilliant.For us, a standard grading report is never enough. At Beaverbrooks we only work with expert diamond suppliers who excel in the artistry and science of cutting exceptional diamonds, and for this reason we only ever offer our own Diamond Certificate. Your stunning diamond will be accompanied by a beautiful Diamond Wallet which contains an expert grading report specific to your diamond, as well as a handy Care Card which entitles you to a lifetime of free cleaning, care and advice at any of our Beaverbrooks stores.