Stacy Keibler puts a ring on it

By Olivia Barker, USA TODAY

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Stacy Keibler attends the Marchesa show in New York on Wednesday. (Credit: Chelsea Lauren, Getty Images)

We've heard of girlfriends leaving bridal magazines on their boyfriends' coffee tables.

Stacy Keibler's possible proposal ploy? Trying on an engagement ring for all the world to gawk.

A sans-George Clooney Keibler slipped a sizable yellow rock onto the fourth finger of her left hand last night at the launch of Jacob & Co.'s new Palladium line. Clooney's better half of one year grins for the cameras as she models the bauble. The 32-year-old's choice of attire? A white dress. (So it was mini. And fringed.)

It was just earlier this week that Clooney's rep, Stan Rosenfield, quashed the rumor that the couple were no more: "A story published by a London tabloid, The Sun, concerning George Clooney and Stacy Keibler is not true. Total fabrication designed to sell newspapers."