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This picture taken on December 1, 2013 shows a tiara designed by Cartier in 1902, as it is displayed during the exhibition dedicated to French luxury watchmaker-jeweller Cartier entitled 'Cartier, le style, l'histoire' (Cartier, style and history) at the Grand Palais in Paris prior to its public opening. The event runs from December 4 to February 16, 2014. AFP PHOTO / FRANCOIS GUILLOT RESTRICTED TO EDITORIAL USE - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS (Photo credit should read FRANCOIS GUILLOT/AFP/Getty Images)

This picture taken on December 1, 2013 shows a tiara designed by Cartier in 1902, as it is displayed during the exhibition dedicated to French luxury watchmaker-jeweller Cartier entitled 'Cartier, le style, l'histoire' (Cartier, style and history) at the Grand Palais in Paris prior to its public opening. The event runs from December 4 to February 16, 2014.  AFP PHOTO / FRANCOIS GUILLOT
RESTRICTED TO EDITORIAL USE - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS        (Photo credit should read FRANCOIS GUILLOT/AFP/Getty Images)