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This Thursday June 28, 2012 photo shows curator Caroline de Guitaut, standing behind the Delhi Durbar Necklace and Cullinan Pendant made up of diamonds and emeralds, created for the Delhi Durbar of 1911 and owned by Queen Mary, at a new exhibition at Buckingham Palace, London. The new exhibition at Buckingham Palace shows jewels collected by six monarchs over three centuries to mark the Queen's Diamond jubilee this summer. (AP Photo/Stefan Rousseau/PA Wire) UNITED KINGDOM OUT

This Thursday June 28, 2012 photo shows curator Caroline de Guitaut, standing behind the Delhi Durbar Necklace and Cullinan Pendant made up of diamonds and emeralds, created for the Delhi Durbar of 1911 and owned by Queen Mary, at a new exhibition at Buckingham Palace, London. The new exhibition at Buckingham Palace shows jewels collected by six monarchs over three centuries to mark the Queen's Diamond jubilee this summer. (AP Photo/Stefan Rousseau/PA Wire) UNITED KINGDOM OUT

10,000 diamonds on display at Buckingham Palace

More than 10,000 of the gems are going on display at Buckingham Palace in a celebration of jewelry owned by British monarchs over three centuries. The exhibition includes a coronation necklace and other gems worn by Queen Elizabeth II as well as items from the royal collection, including the miniature crown adorned with 1,187 diamonds worn by Queen Victoria for her 1897 Diamond Jubilee.