Joe and the Giant Rock

Girls will definitely go wild for the huge diamond engagement ring Joe Francis recently presented to his fiance, Christina McLarty, a Los Angeles entertainment reporter.

The Girls Gone Wild CEO commissioned one of my favorite jewelry designers, Loree Rodkin, to create the ring - and she knocked it out of the park with a nine-carat rock in a diamond pave band with diamonds surrounding the center stone, according to Luxist. And the price tag? Just under half a mil.

Guess there's a lot of money to be made from, um, girls going wild.

Rodkin created jewelry for Elton John, Cher and Steven Tyler, but her most famous client is Michelle Obama - who wore her diamond drop earrings and a diamond cuff bracelet with that stunning Jason Wu gown to all the inauguration festivities (which seems like a lifetime ago).

Click here for more rockin' Rodkin styles - and stay tuned for more Venice Film Festival jewelry sightings! (Insert my go-go dancing Kate Hudson "Cinema Italiano!" impression here.)