Like every couple, Charles and Diana had to attend a rehearsal at St. Paul's Cathedral before making it down the aisle. Several thousand onlookers had already gathered to await the royal couple's wedding as they emerged from the hour-long rehearsal.
The Prince of Wales proposed after six months of dating Diana, but the engagement was kept secret for several weeks while Diana selected the now-famous £30,000 sapphire-and-diamond engagement ring which was not designed specifically for her. The engagement ring was part of crown jewelers Garrard's regular collection.