A picture released on November 16, 2010 of a close up of Kate Middleton's engagement ring, the fiancée of Britain's Prince William, as they pose for photographers during a photocall to mark their engagement, in the State Rooms of St James�s Palace, central London. Britain's Prince William has given his fiancee Kate Middleton the engagement ring that belonged to his late mother Diana, Princess of Wales, Clarence House said Tuesday. The blue sapphire and diamond ring was given to Diana by William's father, Prince Charles, when they became engaged in February 1981.  AFP PHOTO / WPA POOL / Arthur Edwards (Photo credit should read ARTHUR EDWARDS/AFP/Getty Images)