Rachel Allan 70784 stretch tulle, beading prom dresses are offered in Lilac Multi, Pink Multi. $798 is the Formal Approach best price guarantee for style 70784 by Rachel Allan. Shop with confidence, Formal Approach is an authorized Rachel Allan prom dress store. Rachel Allan 70784 is offered in the following sizes: 00, 0, 2, 4, 6, 8, 10, 12.