Rachel Allan 70503 tulle, stone beading prom dresses are offered in Black, Hot Pink, Lilac. $898 is the Formal Approach best price guarantee for style 70503 by Rachel Allan. Shop with confidence, Formal Approach is an authorized Rachel Allan prom dress store. Rachel Allan 70503 is offered in the following sizes: 00, 0, 2, 4, 6, 8, 10, 12, 14, 14W, 16W, 18W, 20W, 22W, 24W, 26W, 28W, 30W.