AshtonKutcherGQEvent230.jpgAshton Kutcher hit the GQ Gentleman's Ball at the Edison Ballroom in NYC on Wednesday night -- and the "gentleman" was sans wife Demi Moore.

Moore was absent from the event even though the charity the two co-founded, Real Men Don't Buy Girls, was being honored. The group fights child prostitution worldwide.

Kutcher, 33, wore his wedding ring, and video monitors played footage of him and Moore, 48, his wife of six years.

But Kutcher did bring someone -- Rabbi Philip Berg, his spiritual mentor (and the Dean of the Kabbalah Centre worlwide.)

The Two And A Half Men star took the podium and gave a passionate speech -- so passionate he swore several times.

The actor ran into radio personality Craig Schwartz. When Schwartz asked about his marriage and "everything that's going on," Kutcher replied,

    "Yeah. Yes. I am doing OK, thanks. Thank you for caring. Thank you for caring, really. It means a lot."