Kate Middleton is picture perfect at first solo engagement

Kate Middleton gave us wardrobe envy yet again with her Jesire coat dress and Jimmy Choo heels at the Lucian Freud Portraits exhibition at the National Portrait Gallery in London yesterday.

It was a special moment for the Duchess of Cambridge, as she was stepping out on her first public engagement without Prince William by her side since their wedding last April.

Kate recently became the royal patron of the gallery and was centre of attention at the private view, which also attracted Bella Freud, Mary McCartney and Jefferson Hack.

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It must have been great for Kate to mix official duties and pleasure, as the Duchess studied art history at St Andrew's University.

We particularly love the extra details of Kate's outfit, like her black belt, bracelet and necklace.

Kate Middleton wowed at the Lucien Freud exhibition in London / PA

Her hair was perfect as ever thanks to a four hour session in Richard Ward's salon on Monday.

The Duchess is keeping busy while Wills is in the Falkland Islands for six weeks. She's taking the opportunity to make solo appearances, with an aide telling the Daily Mail: "She is raring to go."

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She'll be heading to Liverpool for Valentine's Day to visit Alder Hey Children's Hospital and alcohol-free bar The Brink, which is linked to an organisation she is patron of, Action on Addiction.

We imagine there'll be plenty of fans hoping to give Kate a Valentine's gift while William's away.