Rachel Allan 70547 sequin prom dresses are offered in Black, Champagne, Hot Pink, Light Blue, Light Pink, Royal. $438 is the Formal Approach best price guarantee for style 70547 by Rachel Allan. Shop with confidence, Formal Approach is an authorized Rachel Allan prom dress store. Rachel Allan 70547 is offered in the following sizes: 00, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20.