PHOTO GALLERY: Khloe Kardashian’s Rocking a Ring

While hubby-to-be Lamar Odom spent the night with the boys in Hollywood, the usually-wild Khloe Kardashian was spotted leaving her bachelorette party at the Viceroy Santa Monica Beach Hotel.

And she was driving her car afterwards… so it must have not been that crazy! Her sisters Kim and Kourtney and pal Brittny Gastineau were also seen leaving the hotel, where the gals were pampered with massages and spa treatments.

As Khloe drives off, we see the first pictures of her rumored 9-carat diamond engagement ring! Is that a whip we see in the backseat??