On April 28, for the ceremonial welcome on the White House South Lawn — the highest diplomatic honor for a visiting head of state — Camilla wore the Cullinan V Brooch, featuring the heart-shaped 18.8-carat Cullinan Diamond. The royal collection holds nine Cullinan diamonds; Camilla has worn three, including the Cullinan V in Queen Mary’s Crown at the King’s May 2023 coronation. Her coronation crown choices notably avoided the Koh-i-Nûr diamond, historically linked to the Queen Mother.
As the visit continues, the King and Queen are due to attend a state dinner at the White House hosted by the American president and first lady, capping a diplomatic trip tied to America’s 250th anniversary of independence and the first state visit of Charles’s reign.