It was De Beers who pioneered the four Cs - carat, cut, clarity and colour - to grade a diamond, and with over 120 years of heritage in the diamond business, you'll usually find a De Beers ring at the top of a bride-to-be's wish list. The Annabel engagement ring is the newest addition to its beautiful bridal range. The open platinum setting is designed to channel light through the ring, accentuating the brilliance of that fabulous solitaire diamond. Viewed from the side, it appears suspended, allowing you to admire every facet. Two rows of pavé diamonds either side of the diamond give De Beers' Annabel engagement ring provide the sparkling finishing touch. From £12,500, depending on this size of diamond.