The couple, who have been dating for 18 months, got the jewel from Diane von Furstenberg. Sims told US Weekly, "One of my girlfriends [is] one of the heads of DVF; they have been working on it for several months."
Sims' ring is impressive, befitting her supermodel status... but we'd venture to say it still doesn't hold a candle to Kim Kardashian's rock. Not that it's a competition or anything.
(Via New York Daily News)