Rachel Allan 70570 organza, stone beading prom dresses are offered in Aqua, Lilac, Pink. $898 is the Formal Approach best price guarantee for style 70570 by Rachel Allan. Shop with confidence, Formal Approach is an authorized Rachel Allan prom dress store. Rachel Allan 70570 is offered in the following sizes: 00, 0, 2, 4, 6, 8, 10, 12.