Rachel Allan 70850 stretch satin jersey, applique, beading prom dresses are offered in Black Gunmetal, Red, Royal. $718 is the Formal Approach best price guarantee for style 70850 by Rachel Allan. Shop with confidence, Formal Approach is an authorized Rachel Allan prom dress store. Rachel Allan 70850 is offered in the following sizes: 00, 0, 2, 4, 6, 8, 10, 12.