Brits have been enjoying a four-day public holiday since Saturday (02Jun12) to attend a series of events marking the monarch's 60 years on the throne, including a record-breaking 1,000-boat flotilla along the River Thames on Sunday (03Jun12) and a star-studded concert outside Buckingham Palace on Monday night (04Jun12).
The jubilee comes to an end on Tuesday, and the Queen repaid the support of her loyal subjects with an open-top carriage procession through the streets of the capital.
After attending a service of thanksgiving at St Paul's Cathedral, the monarch hosted a special lunch at the Palace of Westminster with her family and various dignitaries before boarding the 1902 State Landau carriage with her son Charles, Prince of Wales and his wife Camilla, Duchess of Cornwall.
Flanked by the Household Cavalry Mounted Regiment and followed by a second State Landau carrying Prince Harry and the Duke and Duchess of Cambridge, the parade weaved through the heart of London as thousands of cheering, flag-waving members of the public lined the streets.
The Queen smiled and waved at onlookers as the procession sped along The Mall and into Buckingham Palace, where the monarch then greeted the crowds from the royal balcony and watched a military flypast in her honour.
The Diamond Jubilee has been tinged with sadness since the Queen's husband, Prince Philip, was forced to miss the final celebrations after being hospitalised with a bladder infection on Monday.