Rachel Allan 8425 dresses are available in the following colors: Smokey Blue, Black. $698 is the Formal Approach best price guarantee for style 8425 by Rachel Allan. Formal Approach is an authorized Rachel Allan prom dress store. We only offer authentic designer prom dresses. Rachel Allan 8425 comes in the following sizes: 0, 2, 4, 6, 8, 10, 12, 14, 16.