Rachel Allan 70831 stretch tulle, beading prom dresses are offered in Black, Burgundy, Emerald, Lilac, Navy, Pink, Powder Blue, White Blue Pink. $798 is the Formal Approach best price guarantee for style 70831 by Rachel Allan. Shop with confidence, Formal Approach is an authorized Rachel Allan prom dress store. Rachel Allan 70831 is offered in the following sizes: 00, 0, 2, 4, 6, 8, 10, 12.