Designer dress, black, evening, cut out center detail with thin chains

The center of this dress has a circle with chains hanging in between the triangle cut out. This dress has straps that are adjustable. There is detail stiching that is in front and back of dress . Slip provided underneath the dress. One hidden zipper to slip on and off in center of back. This dress is fitted to body.  72% viscose, 24% polyamide , 4% elastam  Machine wash in cold water 30 degrees.  Dry cleaning recommended. Do not bleach. Iron on medium heat. Do not tumble dry.  in the USA it is size :6  model height is 5'6