(CBS News) Facebook CEO Mark Zuckerberg's long-time girlfriend Priscilla Chan wore an ivory cut-out embroidered dress designed by Claire Pettibone at their small wedding ceremony on Saturday.
The gown, which featured a floral laser-cut overlay and a sheer back, retails for $4,700 and is currently available on Pettibone's website.
The Los Angeles-based designer has made wedding gowns for "Mad Men's" Elisabeth Moss and "American Idol's" Tamyra Gray, reports People.
The low-key ceremony took place in the couple's backyard in Palo Alto, Calif. The guests were invited over to celebrate Chan's graduation from medical school at the University of California, San Francisco, but didn't know the couple would be tying the knot.