Alexis Theodoracopulos and Kate Werlein know how to step in style. Kate wears a one-shoulder blush organza gown by Katie Ermilio and the Asprey Feather Collection necklace in white gold and diamonds. Alexis wears a Brooks Brothers tuxedo, shirt, cummerbund, and bowtie, with Asprey’s A-cut studs and cufflinks in white gold and onyx. His British Flag pin is also by Asprey, and his shoes by Fratelli Rosetti. Styling by Valery Joseph Salon: Nir Halevi (hair); Shiko Vun (makeup). First assistant: Elizabeth Brown. Second assistant: Essie Gavrilov.