But the "Modern Family" actress, 42, added that she would have married the actor even if the ring wasn't so huge.
"He's so handsome that it would have been okay, you know? I would have said, 'Okay, yeah.'" she added.
As for when the couple will tie the knot, "We're trying to figure it out because… he's shooting and promoting 'Magic Mike' this summer and I'm promoting my movie with Reese Witherspoon and so we're kinda busy, but we're trying to do it maybe [in the] fall."
One thing is for sure, it's going to be "big!"
The guests list "started, like, 'It's only 20.' Yeah right! It's like now there's like pages and pages."