Marc Jacobs floral silk dress with removable orange sash, size 2. This is a really beautiful dress with ruffle detailing at the neckline, down across the bodice, and across the skirt. It has flutter sleeves. It is extremely flattering on and has a side zip closure. The fabric is a lovely silk, very pale blue with salmon, beight, goldenrod, and navy flowers (again, sorry for my awful pictures; the color is best represented by the first picture). The belt came with it, but I usually swap it out for something more neutral. Runs true to size: bust: 15, waist: 13, length: 39.
I bought this at Barneys for $250, wore it once, asking $50, includes shipping.