Rachel Allan 70755 sequin, beading prom dresses are offered in Black Multi, Lilac Multi, Turquoise Multi. $638 is the Formal Approach best price guarantee for style 70755 by Rachel Allan. Shop with confidence, Formal Approach is an authorized Rachel Allan prom dress store. Rachel Allan 70755 is offered in the following sizes: 00, 0, 2, 4, 6, 8, 10, 12.