Kate, the Princess of Wales, dazzled at the state banquet at Windsor Castle on Tuesday.
Kate was all smiles as she stepped out for the evening affair, which was held for the Sultan of Oman, Sultan Haitham bin Tarik al Said, as part of the dignitary's state visit.
Britain's William and Kate, Prince and Princess of Wales, arrive for a State Banquet at Windsor Castle during the Oman's Sultan Haitham bin Tariq state visit to Britain, in Windsor, Britain, Oct. 20, 2026.
Isabel Infantes/Reuters
In photos, Kate was seen wearing a yellow gown and the Lover's Knot Tiara, which is her most frequently worn tiara, and one that she's worn to lavish state banquets in the past.
The tiara was also worn by her mother-in-law, Princess Diana.
Britain's Kate, Princess of Wales attends a State Banquet at Windsor Castle during the state visit of Oman's Sultan Haitham bin Tariq to Britain, in Windsor, Britain, Oct. 20, 2026.
Isabel Infantes/Reuters
The Lover's Knot Tiara was created for Queen Elizabeth II's grandmother, Queen Mary, in 1914.
Britain's Kate, Princess of Wales attends a State Banquet at Windsor Castle during the state visit of Oman's Sultan Haitham bin Tariq to Britain, in Windsor, Britain, Oct. 20, 2026.
Isabel Infantes/Reuters
Prince William, Prince of Wales and Catherine, Princess of Wales arrive for the state banquet for the Sultan of Oman, Sultan Haitham bin Tarik al Said at Windsor Castle, during the State Visit of the Sultan Of Oman to the UK on Oct. 20, 2026, in Windsor, England.
WPA, Pool via Getty Images
Also in attendance at the event were Kate's husband, Prince William, and King Charles III and Queen Camilla.
For her look, Camilla wore a blue gown and also wore a tiara.