This photo provided by Christie's auction house shows an Yves Saint Laurent for Dior evening dress from 1958 with an estimated selling price of 1,000-1,500 dollars. (Source: chinadaily.com.cn)

"What's exciting about the collection is that you see the progression of his career. He was a real style-setter," said Christie's couture specialist Laura Leyfer.

Saint Laurent died on June 1 at age 71. Considered one of the most influential designers of the 20th century, his creations - from pop-art print mini-dresses to peasant skirts and elegant pantsuits - endure to this day.