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PRAGUE, CZECH REPUBLIC - MARCH 27: Queen Elizabeth II attending a banquet in Prague wearing a sapphire and diamond tiara which she had made to match the cluster necklace and earrings which were a wedding present from her father, George VI. (Photo by Tim Graham/Getty Images)

PRAGUE, CZECH REPUBLIC - MARCH 27:  Queen Elizabeth II attending a banquet in Prague wearing a sapphire and diamond tiara which she had made to match the cluster necklace and earrings which were a wedding present from her father, George VI.  (Photo by Tim Graham/Getty Images)