While all the media talk was about Facebook’s initial public offering, Mark Zuckerberg and his nine-year-old girlfriend Priscilla Chan secretly tied the knot on Saturday. According to Us Weekly, the couple spent the past five months preparing for the wedding, but they preferred not to mention anything because they wanted an intimate ceremony.

Mark Zuckerberg and Priscilla Chan had numerous achievements to celebrate last week. First, it was Priscilla’s graduation from medical school which took place on the same day when Mark Zuckerberg accomplished 28 years old. Then, the much-anticipated Facebook IPO was finally performed on Friday, so everybody thought the couple would invite their friends on Saturday to celebrate the last week’s success.

Their expectations were overthrown when they noticed that the home in Palo Alto, California had been decorated for a wedding. Nobody knows why Mark and Priscilla wanted to keep everything a secret, but their decision was correct as the wedding might have overshadowed the initial public offering of the social network.

The setting of the wedding was just as simple as the ceremony. The Harvard sweethearts chose to exchange vows in their backyard proving that despite the millions of dollars that they now own, they remain as modest as they used to be during college. Mark wore a black suit and a tie, whereas his wife, Priscilla opted for a Claire Pettibone dress that cost $4,700. Although unsophisticated, the design of the gown was embellished with embroidered details, matte sequins and ivory cut-outs.

Mark Zuckerberg is very good at keeping secrets because he did not reveal the wedding ring to Chan until the wedding day. According to sources, the model was designed by the CEO himself. He chose a plain form, but adorned it with rubies instead of the already too common diamonds.

Thanks to the Friday IPO, Mark Zuckerberg’s wealth augmented to $19 billion. Despite this, their wedding menu was ordered from their favorite local restaurants in Palo Alto, Sol and Fuki Sushi. They did not hire a special company to serve the food at the tables as they preferred to eat in family style. Burdick chocolate “mice” were served for desert because this was what the couple had on their first date.