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The Duchess of Cambridge's wedding dress, designed by Sarah Burton for Alexander McQueen, is photographed before it goes on display at Buckingham Palace during the annual summer opening on July 20, 2011, in London. The Duchess of Cambridge's dress featured lace applique floral detail and was made of ivory and white satin gazar with a nine-foot train. She wore when she wed Prince William, Duke of Cambridge, on April 29, 2011.
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The Duchess of Cambridge's wedding dress, designed by Sarah Burton for Alexander McQueen, is photographed before it goes on display at Buckingham Palace during the annual summer opening on July 20, 2011, in London.
Lewis Whyld/WPA Pool/ Getty Images
A detail of the Duchess of Cambridge's wedding dress, designed by Sarah Burton for Alexander McQueen, is photographed before it goes on display at Buckingham Palace during the annual summer opening on July 20, 2011, in London.
Lewis Whyld/WPA Pool/ Getty Images
The Cartier "Halo" tiara, worn by the Duchess of Cambridge on her wedding day, is photographed before it goes on display at Buckingham Palace during the annual summer opening on July 20, 2011, in London. The tiara, which was her "something borrowed," was loaned to the bride by the Queen, a tradition for royal weddings.The Duchess of Cambridge wore the tiara on her wedding day, April 29, 2011, when she married Prince William, Duke of Cambridge.
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The Duchess of Cambridge's wedding earrings are photographed before they go on display at Buckingham Palace during the annual summer opening on July 20, 2011, in London. The diamond earrings were commissioned by the Middleton family as a personal gift to the bride from her parents, and were worn on her wedding day, April 29, 2011, when she married Prince William, Duke of Cambridge.
Lewis Whyld/WPA Pool/ Getty Images
The Duchess of Cambridge's wedding dress, designed by Sarah Burton for Alexander McQueen, is photographed before it goes on display at Buckingham Palace during the annual summer opening on July 20, 2011, in London. The Duchess of Cambridge's dress featured lace applique floral detail and was made of ivory and white satin gazar with a nine-foot train. It was worn her wedding day, April 29, 2011, when she married Prince William, Duke of Cambridge.
Lewis Whyld/WPA Pool/ Getty Images
A detail of the Duchess of Cambridge's wedding dress, designed by Sarah Burton for Alexander McQueen, is photographed before it goes on display at Buckingham Palace during the annual summer opening on July 20, 2011, in London.
Lewis Whyld/WPA Pool/ Getty Images
The Duchess of Cambridge's wedding dress, designed by Sarah Burton for Alexander McQueen, is photographed before it goes on display at Buckingham Palace during the annual summer opening on July 20, 2011, in London.
Lewis Whyld/WPA Pool/ Getty Images
The Duchess of Cambridge's wedding dress, designed by Sarah Burton for Alexander McQueen, is photographed before it goes on display at Buckingham Palace during the annual summer opening on July 20, 2011, in London.
Lewis Whyld/WPA Pool/ Getty Images
A detail of the Duchess of Cambridge's wedding dress, designed by Sarah Burton for Alexander McQueen, is photographed before it goes on display at Buckingham Palace during the annual summer opening on July 20, 2011, in London. The Duchess of Cambridge's dress featured lace applique floral detail and was made of ivory and white satin gazar with a nine-foot train. It was worn her wedding day on April 29, 2011, to Prince William, Duke of Cambridge.
Lewis Whyld/WPA Pool/ Getty Images
The Duchess of Cambridge's bridal shoes are photographed before they go on display at Buckingham Palace during the annual summer opening on July 20, 2011, in London. The ivory shoes show slight signs of wear and tear and have 'Alexander McQueen' embossed on the inner-sole.
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The Duke and Duchess of Cambridge's royal wedding cake is photographed before it goes on display at Buckingham Palace during the annual summer opening on July 20, 2011, in London.
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The first cut made by the Duke and Duchess of Cambridge in the royal wedding cake is photographed before it goes on display at Buckingham Palace during the annual summer opening on July 20, 2011, in London.
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Cake designer Fiona Cairns poses with the Duke and Duchess of Cambridge's royal wedding cake as it is photographed before it goes on display at Buckingham Palace during the annual summer opening on July 20, 2011, in London.
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A recreation of the Duchess of Cambridge's wedding bouquet is photographed before it goes on display at Buckingham Palace during the annual summer opening on July 20, 2011, in London. The bouquet, made of lily of the vallery, hyacinths, ivy and myrtle (which was grown from the bouquet of Queen Victoria), was featured in her wedding day, April 29, 2011, when she married Prince William, Duke of Cambridge.
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Caroline de Guitaut, curator of the exhibition display, adjusts the Duchess of Cambridge's wedding dress, designed by Sarah Burton for Alexander McQueen, before it goes on exhibit at Buckingham Palace during the annual summer opening on July 20, 2011, in London.
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Caroline de Guitaut, curator of the exhibition display, adjusts the Duchess of Cambridge's wedding dress, designed by Sarah Burton for Alexander McQueen, before it goes on exhibit at Buckingham Palace during the annual summer opening on July 20, 2011, in London.
Lewis Whyld/WPA Pool/ Getty Images
A detail of the Duchess of Cambridge's wedding dress, designed by Sarah Burton for Alexander McQueen, is photographed before it goes on display at Buckingham Palace during the annual summer opening on July 20, 2011, in London.
Lewis Whyld/WPA Pool/ Getty Images
The Duchess of Cambridge's wedding dress, designed by Sarah Burton for Alexander McQueen, is photographed before it goes on display at Buckingham Palace during the annual summer opening on July 20, 2011, in London.