Tyra Banks: "I'm Not" Engaged

Tyra Banks arrives at the 36th Annual Daytime Emmy Awards at The Orpheum Theatre on August 30, 2009 in Los Angeles, CA. Credit: Alberto E. Rodriguez/WireImage.com

Tyra Banks isn't saying "I Do" any time soon.

Rumors surfaced the talk show host was planning to wed her longtime businessman beau John Utendahl after she was spotted with bling on her left-hand ring finger over the weekend in L.A.

See more photos of stars who won't wed.

But Banks, 35, set the record straight on Twitter Monday.

"Hearing about crazy rumors that I'm engaged. Well, I'm not," she posted. "The 'RING' is my high school class ring. It's 10k gold, and has zero diamonds. Ha!"

Check out pics of stars' engagement rings.

Season 5 of Banks' show premieres Sept. 8 on the CW.