"Things are really good," Sheen told CBS "Late Late Show" host Craig Ferguson as he waved his wedding band on his left hand.
"That's a pretty good indication," Sheen said Thursday night.
People magazine has reported Richards is wearing her ring again, too.
Richards filed for divorce last March after three years of marriage.
The couple have two children, 1-year-old Sam and 5-month-old Lola.
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