Nicollette Sheridan and Her Ring Finger Are Alone Again

It only took her a couple months after splitting from Michael Bolton, but Nicolette Sheridan has finally squeezed off her obsolete engagement ring.

Because diamonds really are a girl's best friend, even if fiances aren't. 

The newly single, Desperate (non-)Housewife was spotted looking shy Friday night when she and her naked left finger hit up The Ivy for some single dining.   

But where is her rebound man? 

Methinks it's time Nicolette received an invite into Jen and Cam's exclusive girl's club.  John Mayer and Lance Armstrong are back on the market, after all...