Colette CL12224 in Tulle, Lace, Stone Accents. $685 is the Formal Approach best price guarantee for style CL12224 by Colette. Shop with confidence, Formal Approach is an authorized Colette prom dress store. Colette CL12224 comes in the following colors: Black Champagne, Platinum Dusty Blue, and these sizes: 00, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20.