In addition to St. Edward's Crown, the Imperial State Crown and the Queen Mary Crown — these are the royal family's other crowns.

King Charles III will wear two crowns — St. Edward's Crown and the State Imperial Crown — on coronation day, May 6, 2023, while Queen Camilla will wear Queen Mary's crown with one major change.

The crown on the coffin, as Town & Country pointed out, is the Imperial State Crown, which is “made of gold and set with 2,868 diamonds, 17 sapphires, 11 emeralds, 269 pearls, and 4 rubies ...

It is 22-carat gold with 444 precious stones and has not been worn since 1953 when the Queen ascended. ... As Prince of Wales, Charles wore a crown that the Queen would never wear.