Shop it: Oversized Jacket by H&M, $49.99; hm.com.  Harisha georgette halterneck midi dress by Three Graces London, $580; net-a-porter.com. Petite Ombre Ear Pin by KatKim, $1,160; shopbop.com. Amaya Cobalt Blue Boots by Flor de Maria, $495; flordemariacollection.com