short sequin cocktail dress Lady Black Tie - Mercury Mini - Fringe Dress With a focus on fit and fabric quality Amarra 88042 Short Beaded Fringe

$89.00 $109.00 $89.00 Unit price per Silver Steel Grey Black Vintage Mauve Plum Babaroni Cassiopeia V Neck Long Chiffon Dress with Bow Black Cassiopeia's modern crisscross, pleated front bodice combined with its chic illusion v-neckline make the bridesmaids look sexy

Manning Cartell Dream Girl Dress, $699, shop online at Manning Cartel

Complete the look with stiletto heels

Details: Shell: 96% polyester 4% spandex

Mixing things up with a slightly (though intentionally) mismatched jacket and trousers is a way to maintain clean line and sense of cohesion you get from a suit, while knocking some of the formality out of it