The King and Queen hosted a glittering diplomatic reception at Buckingham Palace, with Camilla stepping out in the late Queen’s aquamarine and diamond tiara for the first time.The Prince of Wales joined the monarch and consort for the grand white-tie affair on Tuesday night,

Prince William joined King Charles and Queen Camilla for the Diplomatic Corps Reception at Buckingham Palace on Nov. 19, but Kate Middleton was notably absent from the annual event. The white-tie gathering sees members of the royal family welcome hundreds of diplomats to the royal residence in London.

The Princess of Wales has been slowly returning to work since completing her cancer treatment in September, but a source has claimed her husband is worried and has told her to 'put herself first'

King, Queen and William host glittering reception at Buckingham Palace but Kate stays away - Camilla steps out in late Queen’s aquamarine and diamond tiara for the first time at annual palace event