The "wedding nightgown" is worn in the scene following the wedding of Louis XVI and Marie Antoinette, where the newlyweds are alone together for the first time. The costume consists of a base gown and a heavily embellished lace cape. The gown can be broken down into two distinct parts: the white corset-style bodice (which is perhaps a separate piece?) and the sleeves and skirt, which are made from a soft, gauzy material. The cape is made from lace and is embellished with hand-sewn artificial pearls and celluloid sequins.
The color of the costume is partially known: the lace cape is cream colored. The costume may have been reused in later MGM films, but this is unconfirmed.
The lace cape was sold in 2014 by Julien's Live for $4,062.50. Its current whereabouts are unknown. The location and condition of the base nightgown are unknown.