Some sort of world famous diamond made a pit stop in San Francisco this week. It's called the the Chrysanthemum Diamond, and SF First Lady and sometime actress Jennifer Siebel got to wear the thing last night at a holiday party hosted by jewelry company S.H. Silver. The jewel, found in South Africa in 1963, has 189 facets and is of the biggest brown diamonds ever discovered. So it looks like gigantic, shiny, brown turd all dolled up. How fitting.