Colette CL12218 in Glitter Tulle. $419 is the Formal Approach best price guarantee for style CL12218 by Colette. Shop with confidence, Formal Approach is an authorized Colette prom dress store. Colette CL12218 comes in the following colors: Gold Pewter, and these sizes: 00, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24.