Rachel Allan 70557 glitter tulle, tulle, applique, beading, 3d flowers prom dresses are offered in Light Blue, Lilac, Mint. $798 is the Formal Approach best price guarantee for style 70557 by Rachel Allan. Shop with confidence, Formal Approach is an authorized Rachel Allan prom dress store. Rachel Allan 70557 is offered in the following sizes: 00, 0, 2, 4, 6, 8, 10, 12, 14, 14W, 16W, 18W, 20W, 22W, 24W.