Chic Dresses for a Seaside Wedding

Slinky sheaths make for a stunning debut. Off-white silk crepe dress with open back and beaded chiffon collar and belt, about $2,100, by Youlin. Gold, moonstone and aquamarine ring, $2,850, by Elizabeth Locke. Gold-and-enamel bracelet, $5,950, by Roberto Coin. Glitter-gold perforated leather thong sandals, $465, by Jimmy Choo.