The King and Queen hosted the diplomatic reception on Tuesday evening with Camilla sporting the emerald tiara worn by Princess Eugenie on her wedding day.

The Prince of Wales made a solo appearance as the Princess of Wales missed the annual white-tie and tiara event for the second year in a row. The royals mingled with over 900 diplomats in the state rooms at Windsor Castle for the first time since 2001. Traditionally, the event takes place at Buckingham Palace.

It comes after Kate issued a rallying call to business leaders to prioritise "time and tenderness just as much as productivity and success" as she delivered a speech at a summit aimed at driving further action and investment in the early years development of children, earlier on Tuesday.

The Princess missed the reception

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