The values of costumes usually depend on the designers, big names like Cristobal Balenciaga, Coco Chanel and Christian Dior. Costumes from those designers are often worth more. Also limited editions are also more valueable. Also costumes from certain years like 1950s, 1960s or 1970s are more desirable. When look for the costumes, check the shape, condition, material, pattern and color. A mid-1960 Pierre Balmain pale green gazar ballgown can worth up to $2000.

Here are some costumes for sale on eBay.