Teal and Brown formal dress with beading

This is a gorgeous party dress for prom or other formal events. It has a teal silk lining and a sheer brown overlay with a pleated skirt. The bodice is covered with intricate beading (some of the threads are coming loose). Some of the pleats along the sides seem to be twisted, but it is not noticeable when the dress is being worn. The instructions say to dry clean only, but my dry cleaner would not accept it due to the beading, so I washed it by machine on delicate. It seemed to survive OK!