2 Piece Sequin top and skirt in Aqua with elastic waistband.  Bought this for son's wedding in 1990  and also wore to his daughters, my granddaughters wedding in 2021.  Beautiful outfit that I purchased in New York City.
The outfit has a lot of sequins and seed beads, the skirt has a crooked hem going from 25 inches from waist to 27 inches, seems to give your legs a little lift. I did have new elastic put in the waist, but she did put a looser fitting elastic, not happy with that.