collection. Catherine, Princess of Wales also wore the four-strand pearl and diamond necklace from the Queen’s collection to the Duke of Edinburgh’s funeral in 2021, as well as to a party at Buckingham Palace to celebrate the Queen and Prince Philip’s 70th wedding anniversary in 2017. The choker was originally commissioned by the late Queen using cultured pearls that were a gift from the Japanese government, and she wore it regularly in the 1980s and 1990s.