Rachel Allan 70605 iridescent organza, stone beading prom dresses are offered in Burgundy, Lilac, Royal. $798 is the Formal Approach best price guarantee for style 70605 by Rachel Allan. Shop with confidence, Formal Approach is an authorized Rachel Allan prom dress store. Rachel Allan 70605 is offered in the following sizes: 00, 0, 2, 4, 6, 8, 10, 12.