Classy formal gown

Absolutely classy and stunning gown! I bought to wear to my daughter's Fall wedding but I'm petite and it doesn't fit 😢. size 14, but I think it fits more like a 12, lots of room in the bust if you are bustier which I am not. sorry, my dressform is a size 6 so it appears loose on it in the pics. Short train as seen in the photos. It doesn't appear it was ever worn, but no sales tag so I'm labeling gently used. No stains or damage other than hardware on straps looks antique.. fully lined, bodice has boning so you can wear off shoulder with no slipping. looks like 2 pieces but actually one. zip back, machine wash heavy matte Satin. no idea the original $ but guessing $$$.