The game was tied midway through the second half before the Bulldogs reeled off eight consecutive points, including a 3-pointer by Taylor Echols, to lead 51-43 with 6:46 remaining. Georgia later took a 55-51 lead with 43 seconds remaining when Gaines sank a 3-pointer from the left corner to put away the Aggies, who have won seven of their last nine.
Georgia (16-7, 7-4) has won two straight following a two-game losing streak. The Bulldogs are now 4-0 all-time against the Aggies, in a series that only dates to 2013.
Texas A&M (16-7, 7-4) committed nearly twice as many turnovers (13) as Georgia (seven).
Alex Caruso led Texas A&M with 20 points.