If Kate Middleton’s Sarah Burton for Alexander McQueen wedding gown was the dress that launched lace sleeves around the world, then Pippa Middleton’s Giles Deacon masterpiece will be the dress that launches modest mock-neck necklines for brides everywhere. The high-neck, cap-sleeve, full skirt and all-over lace bring gave off major Grace Kelly vibes, but the keyhole back added a touch of modernity and sexiness we associate with the Duchess of Cambridge’s sister. Want to copy the new Mrs. Matthews’ timeless style? We’ve got 26 gorgeous gowns that will do the trick!