With the loss, LSU (15-8, 6-5 SEC) dropped into a fifth place tie in the SEC standings. The Aggies (14-10, 5-6 SEC) have won 13 of their 15 games at home this season.
Johnny O'Bryant III tacked on 15 points and six rebounds, while Jordan Mickey secured 13 points and seven rebounds. The trio of Coleman, Mickey and O'Bryant III knocked down 19 of their 32 shots. The rest of the LSU team combined for a 7-of-32 shooting clip.
Off the bench, LSU's top performer was Jarell Martin. He tallied 11 points en route to his fourth consecutive game in double figures. Anthony Hickey came away with nine points and six assists.
Texas A&M was fueled by Jamal Jones' 19 points aided by five three-pointers. Kourtney Roberson picked up 12 points and 10 rebounds, while Davonte Fitzgerald added 11 first-half points.
LSU connected on its first three baskets and jumped out to an 8-2 advantage during the first 1:57 of the contest. Hickey canned a pair of treys to spark the flurry.
The Tigers continued their hot shooting and grabbed their largest lead at 22-14 after consecutive Martin and Mickey layups with 11:04 remaining. LSU was 10-of-15 from the floor when O'Bryant III went to the bench with two fouls.
The Aggies pieced together 15 of the next 21 points over the next 3:50 and grabbed a 29-28 edge with 6:58 left on the clock. Fitzgerald came off the bench to spark A&M with eight quick points.
All square at 35-35 at the 3:58 mark of the opening half, the Aggies scored eight of the final 10 points to take a 43-37 lead into the locker room.
Texas A&M kept the momentum and went on another 8-2 spurt to extend its lead into double figures at 51-39 with 16:57 to go.
The Tigers fired back with eight quick points over the next 1:58 and drew as close as 51-47 after an O'Bryant III dunk at the 14:36 mark. Coleman also hit one of his three triples during the run.
Texas A&M put the game back into double figures during the next three minutes and kept a 10-plus point lead for a majority of the rest of the way.
LSU wraps up its two-game road swing Saturday at Arkansas.