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Of course we love when Catherine, Duchess of Cambridge wears her girl-next-door Rebecca Taylor skirt suits and Matthew Williamson day dresses, but when she wears a gown—especially like the one she wore to the Olympic-themed concert at the Royal Albert Hall in London tonight—it’s exciting in a much more of Living-the-Princess-Life kind of way. This look, courtesy of British designer Jenny Packham, featured intricate detailing, like a button-up lace-covered back and jeweled waistline in a rich peacock green, teal hue. “I think that Kate has a particular style, and I think that my dresses are quite in keeping with her style,” Packham told InStyle.com at her last fashion show. “I think women who like my dresses like to look feminine and classic but with modern elements.” Catherine’s extras provided great finishing touches, from a matching clutch to her Jimmy Choo shoes to her braided updo. Tell us: What do you think of the look—love it or leave it? Let us know in the comments!

Plus, see Catherine’s best looks ever in the gallery.

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