Rachel Allan 7240 dresses are available in the following colors: Lilac Gold, Silver Gold. $538 is the Formal Approach best price guarantee for style 7240 by Rachel Allan. Formal Approach is an authorized Rachel Allan prom dress store. We only offer authentic designer prom dresses. Rachel Allan 7240 comes in the following sizes: 14W, 16W, 18W, 20W, 22W, 24W, 26W, 28W, 30W.