Colette CL8500 dresses are offered in Royal Blue, Scarlet, Champagne. $499 is the Formal Approach best price guarantee for style CL8500 by Colette. Shop with confidence, Formal Approach is an authorized Colette prom dress store. Colette CL8500 is offered in sizes: 00, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24.