Jovani 23906 prom dresses come in the following colors: Multi. $590 is the Formal Approach best price guarantee for style 23906 by Jovani. Shop with confidence, Formal Approach is an authorized Jovani prom dress store. We only offer authentic designer prom dresses. Jovani 23906 is available in the following sizes: 00, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24.