Rachel Allan 70815 organza prom dresses are offered in Aqua, Hot Pink, Lilac, Yellow. $558 is the Formal Approach best price guarantee for style 70815 by Rachel Allan. Shop with confidence, Formal Approach is an authorized Rachel Allan prom dress store. Rachel Allan 70815 is offered in the following sizes: 00, 0, 2, 4, 6, 8, 10, 12.