It was the first loss for coach Tad Boyle in his tenure at Colorado. The Buffs are now 1-1 in the early going this year.
Georgia played without preseason SEC player of the year, Trey Thompkins, who was out with a sprained ankle, but Gerald Robinson scored 21 to lead the Bulldogs. Travis Leslie had 19 points and Jeremy Price scored 17.
The Bulldogs won despite making just 28 of 43 free throw attempts, but they made them down the stretch when it counted.
Colorado continues its trek around the nation in nonconference play on Saturday with a game at San Francisco. CU also is scheduled to play at Harvard and in a tournament in Las Vegas.