Seattle Seahawks Star Chris Clemons -- You May Now Divorce the Bride ... for $500,000

Seattle Seahawks sack-machine Chris Clemons is now officially divorced from his wife -- but TMZ has learned, it'll cost him $500,000 ... AND a Land Rover.

Clemons' wife Veranetta filed for divorce in 2010 on grounds of adultery -- claiming Chris admitted to having casual sex with several women in 2009 ... and would often disappear to Atlantic City at all hours of the night, returning home the next afternoon.

Veranetta also claims Chris -- who led the Seahawks in sacks in 2010 and 2011 -- was "physically, emotionally, and financially abusive" toward her during their relationship.

Clemons shot back, denying the allegations -- but insisting he wanted a divorce too.

As part of the divorce, Veranetta demanded exclusive use of the couple's Georgia mansion -- as well as one of their cars ... the Land Rover or the Bentley. On top of that, Veranetta wanted $10,000 a month in alimony for 5 years.