New With Tags Stunning B & A by Betsey and Adam Cocktail Dress Black With Silver Sparkles Prom Dress. This gorgeous dress has a very flattering A-Line fit and is just so elegant while still being soft and comfortable the skirt has some crinoline in the lining to make it flare out a bit which is so cute. The dress is a size 10 originally purchased at Macy's for $149 Measurements Pit to pit 16" Length 34" Waist 13"