Kate's Wardrobe Evolution: From Middleton to Royal Mom

Not everything from Kate Middleton's single girl wardrobe has made it into royal rotation, but there are a surprising number of items that have. Sure, the diamonds and designer pieces are built to last, but a simple jean skirt and high street labels have also made the grade. So what did she wear clubbing before she was married, and later select for one of the most formal events in the royal calendar? And which slinky party dress has been spotted underneath a more conservative coat, at a recent engagement? We've rounded up all the items that have worked just as well for both private citizen and public princess . . .