Sherri Hill 55780 comes in the following colors: Malachite Blue. $650 is the Formal Approach best price guarantee for style 55780 by Sherri Hill. Shop with confidence, Formal Approach is an authorized Sherri Hill prom dress store. We only offer authentic designer prom dresses. Sherri Hill 55780 is available in the following sizes: 000, 00, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18.