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SINGAPORE - OCTOBER 10: Queen Elizabeth II At State Banquet. Her Diamond Tiara Was Made By Garrard Is Referred To As 'granny's Tiara' As It Was Originally A Wedding Gift To Queen Mary From The 'girls Of Great Britain And Ireland'. Fringe Necklace Of Drop Diamonds A Gift From King Khalid Of Saudi Arabia Worn With Diamond Bow Brooch. (Photo by Tim Graham/Getty Images)

SINGAPORE - OCTOBER 10:  Queen Elizabeth II At State Banquet. Her Diamond Tiara Was Made By Garrard Is Referred To As 'granny's Tiara' As It Was Originally A Wedding Gift To Queen Mary From The 'girls Of Great Britain And Ireland'.  Fringe Necklace Of Drop Diamonds A Gift From King Khalid Of Saudi Arabia Worn With Diamond Bow Brooch.  (Photo by Tim Graham/Getty Images)