Happy 31st Birthday Kate Middleton! 31 of Our Favorite Dresses

Jessica Ferri
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Kate's most infamous (and edgy) dress was the one that first caught the eye of Prince William during a fashion show at St. Andrew's in 2002. She strutted down the runway wearing a barely-there $30 lacy slip by designer Charlotte Todd. It's no surprise that since Kate and William's wedding the dress' value has skyrocked to over $100,000.

In celebration of the Duchess of Cambridge's 31st birthday tomorrow, we've picked 31 of our absolute favorites of her dresses, everything from inexpensive Zara frocks right off the rack to high glamour designers like Alexander McQueen and Jenny Packham.