What better way to celebrate your engagement than a De Beers diamond ring from the jeweller that invented the concept? In the early 1940s, American advertising agency N.W. Ayer devised a campaign with the iconic slogan "A Diamond is Forever" and couples all over the world pledging their commitment to one another haven’t looked back since. The De Beers Aura engagement ring is a classic halo style ring that will never date and features a central round brilliant surrounded by smaller diamonds with further diamond pavé on the platinum band. Available in different colours and clarity grades, as well as carat sizes, the Aura engagement ring shown here is prong-set with a 0.5ct round brilliant diamond and is priced from £4,900.