FIRST PIC: Reese Witherspoon Flashes Wedding Ring!

Five days after exchanging vows with CAA agent Jim Toth, Reese Witherspoon flashed her platinum wedding band outside her local gym in Brentwood neighborhood of Los Angeles, California.

Toth, 40, presented the Water for Elephants actress with a 4-carat diamond engagement ring in December. (See more shots of Witherspoon's wedding band on X17.)

PHOTOS: Check out these celeb engagement rings

As UsMagazine.com previously reported, the couple wed Saturday evening at the actress' 6-acre ranch in Ojai, Calif. Wearing a pale pink gown custom-designed by Monique Lhuillier (and a pair of $645 Jimmy Choos), Witherspoon, 35, "looked so happy" during the star-studded ceremony.

PHOTOS: How Reese and Jim fell in love

Among those in attendance? Renee Zellweger, Matthew McConaughey and Camila Alves, Kate Hudson, Scarlett Johansson (with date Sean Penn), Gwyneth Paltrow and Chris Martin, Alyssa Milano, Robert Downey Jr., Sacha Baron Cohen and Isla Fisher, Tobey Maguire and Jennifer Meyer, and Colin Hanks.

PHOTOS: Reese, Jim and her kids -- happy family!

"Reese and Jim were beaming all night," a guest tells the new issue of Us Weekly.

For all the details on the rustic, chic wedding -- including exclusive photos, how Witherspoon's kids played a part and much more -- pick up the new Us Weekly, out now.