3.1 Philip Lim overlay black dress beaded collar

3.1 Philip Lim overlay silk, black dress from Saks Fifth Avenue. Never worn but has a loose bead on the back of the collar (see picture). Dress is 2 parts: silk, boxy, black beaded top that goes over black strappy dress underneath. Top can be worn separately. Dress layer is fitted on top with a flowy bottom that falls just below the knees.