Lanvin vintage collection skirt (see size notes!)

Purchased from designer resale from editors private collection. I LOVE this skirt but found the sizing to be off. It was listed as a small but is too big for me. I dont want to have it taken it because the material is so beautiful, so trying to sell it here first if I can. Lanvin Skirt • Vintage • From the 2005 Collection • Black • Floral Print • Pleated Accents • Zip Closure From the closet of editor Alix Browne. Size not listed, estimated from measurements. Waist: 29.75" Hip: 46.5" Length: 28"