Mark Zuckerberg must be having a good few days: He’s got more money than God and David Bowie combined, and he just got married to longtime girlfriend Priscilla Chan. The announcement was made on Zuckerberg’s Facebook page, obviously.

The two were wed in a small backyard ceremony in Palo Alto, California on Saturday. Guests were under the impression they’d be celebrating Chan’s graduation from medical school.

Zuckerberg designed the wedding ring–a “simple ruby sparkler”–himself. Attendees dined on sushi and chocolate mice. Here’s one more glimpse of the dress: