BRAZIL – APRIL 25: Princess Diana Engagement Ring, Wedding Ring, Watch, Gold Earrings (Photo by Tim Graham/Getty Images)

(FILE) A file picture dated 11 April 2011 shows Britain’s Prince William fiancee, Kate Middleton as she looks on at the Witten Country Park in Darwen, Britain. According to media reports on 13 April 2011 the bride-to-be will have her sapphire and diamond engagement ring resized in time for the royal wedding that will take place in London on 29 April 2011.