Wedding Gown Size 6 Sample-Never Worn

This is a classic style simple wedding gown that I bought my daughter about 4 years ago based on "her size". Big mistake. Never realized wedding gown sizes don't really correspond to "regular sizes". It was too small for her, could not be returned and it's been sitting in a closet. It was advertised as a size 6 but it seems smaller. The dress is basically white satin covered in tulle with a plunge neckline and a slightly empire waist. The back is adorned with one large tulle bow (hard to see because it needs pressing). At the empire waist, it measures 28 inches. In the hip area, it measures 31 inches. Honestly, I'd trust the measurements more than the size listed. Dress is unworn, unaltered and just needs to go to the drycleaner to be pressed and fluffed. No stains, no tears, no wear. Comes from a sealed closet in a smoke free/dog friendly home. The brand is unknown since it was a sample. Original cost was $800.