Rachel Allan 40420 taffeta, stone beading prom dresses are offered in Jade, Navy, Red. $398 is the Formal Approach best price guarantee for style 40420 by Rachel Allan. Shop with confidence, Formal Approach is an authorized Rachel Allan prom dress store. Rachel Allan 40420 is offered in the following sizes: 00, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20.