LONDON, UNITED KINGDOM - JUNE 30: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Queen Elizabeth II (wearing her Cullinan V diamond brooch. The Cullinan V is an 18.8 carat heart-shaped diamond, cut from the The Cullinan Diamond - the largest rough diamond ever found - set in the centre of a platinum brooch made for Queen Mary to wear at the Delhi Durbar in 1911) attends a service on the eve of the centenary of The Battle of The Somme at Westminster Abbey on June 30, 2016 in London, England. (Photo by Max Mumby/Indigo/Getty Images)
