Garrard is famous for its blue sapphire engagement rings, having created the sapphire and diamond cluster that Prince William proposed to the Duchess of Cambridge with. This platinum Marguerite 1735 ring pays homage to its royal cousin, but has been crafted with a softer, almost floral setting. At its centre is a 5.21 carat cushion-cut unheated Sri Lankan blue sapphire, held in place with four sharpened platinum claws. Edging the sapphire is a rim of tiny round diamonds and beyond that is a curvaceous halo of 12 larger round diamonds. The shoulders of the ring have also been set with strips of diamonds. In total, there are 56 diamonds set into the ring, amounting to a total carat weight of 1.08 carats. Discreetly placed inside the band, next to the required hallmarks, is the signature of the British jewellery house.