PAPUA NEW GUINEA - OCTOBER 13: Queen Elizabeth II at a banquet in Papua New Guinea. She is wearing the Girls of Great Britain and Ireland diamond tiara and an emerald necklace and earrings which are known as the Cambridge and Delhi Durbar Parure. (Photo by Tim Graham Photo Library via Getty Images)
KUALA LUMPUR, MALAYSIA - OCTOBER 14: Queen Elizabeth II wears Granny's Tiara and the Cambridge Emeralds whilst attending a State Banquet in Kuala Lumpur. (Photo by Tim Graham Photo Library via Getty Images)
LONDON - JULY 25: Queen Elizabeth II's dresses are reflected in a glass case displaying The Vladimir Tiara and The Delhi Durbar necklace at Buckingham Palace on July 25, 2006 in London. Celebrating the Queen's 80th birthday, the largest ever exhibition of 80 gowns and jewellery from the 1940's to the present day, worn by her majesty on private and official engagements, will go on show to the public in the State Rooms during the summer opening of the palace. (Photo by Peter Macdiarmid/Getty Images)
LONDON - JULY 25: Queen Elizabeth II's Vladimir Tiara is displayed at Buckingham Palace on July 25, 2006 in London. Celebrating the Queen's 80th birthday, the largest ever exhibition of 80 gowns and jewellery from the 1940's to the present day, worn by her majesty on private and official engagements, will go on show to the public in the State Rooms during the summer opening of the palace. (Photo by Peter Macdiarmid/Getty Images)
LOCATION UKNOWN - 1970: Queen Elizabeth II and Prince Philip, the Duke of Edinburgh at a State banquet in 1970. (Photo by Anwar Hussein/Getty Images)
