For the occasion, the Princess of Wales wore a burgundy coat designed by Sarah Burton for Alexander McQueen, and a red beret hat by Sahar Millinery. Sahar Freemantle, the designer behind Sahar Millinery, shared a behind the scenes video on her Instagram about how she made Kate's beret:

Kate Middleton demonstrated how to embrace fall’s it color with regal flair! On December 3rd, the Princess of Wales joined Prince William in welcoming the Emir of Qatar and his first wife, Sheikha Jawaher,

Kate Middleton joined the royal family in welcoming the Emir of Qatar and his first wife, Sheikha Jawaher for Qatar’s U.K. state visit. She dressed regally.