The royal family have welcomed guests to the annual white tie Diplomatic Corps reception at Buckingham Palace.
Senior royals were dressed in their finery for the event on Tuesday night, which was attended by foreign ambassadors based in the UK.
The Queen was joined by the Prince of Wales, Duchess of Cornwall and the Duke and Duchess of Cambridge.
The Queen dazzled in an Angela Kelly dress and wore the Queen Mary Girls of Great Britain and Ireland tiara – one of her favourites and one she wears often.
She also wore white gloves and carried a gold handbag.
Kate wore a shimmering Jenny Packham gown and the diamond and pearl-encrusted Cambridge Lover’s Knot tiara which she has worn before.
This headpiece was made in 1914 and given to William’s late mother Diana by the Queen as a wedding gift in 1981.
Camilla opted for a Bruce Oldfield dress and a Boucheron tiara, pearl choker and pearl earrings.