Colette CL12129 is a sleeveless glitter tulle and lace appliques with stone accents a-line gown, with a v-neck, natural waist, lace up back, horsehair hem, and sweep train $419 is the Formal Approach best price guarantee for style CL12129 by Colette. Shop with confidence, Formal Approach is an authorized Colette prom dress store. Colette CL12129 comes in the following colors: Caribbean Blue, Lilac, and these sizes: 00,0,2,4,6,8,10,12,14,16,18,20,22,24.