Rachel Allan 70790 stretch satin jersey, iridescent beading prom dresses are offered in Deep Champagne, Emerald, Red, Royal. $798 is the Formal Approach best price guarantee for style 70790 by Rachel Allan. Shop with confidence, Formal Approach is an authorized Rachel Allan prom dress store. Rachel Allan 70790 is offered in the following sizes: 00, 0, 2, 4, 6, 8, 10, 12.