The Lions (13-8, 2-3) had tied the game on two free throws by Brian Barbour with 49 seconds remaining after two free throws by Gabas Maldunas gave the Big Green (4-17, 0-5) a 62-60 lead, matching their largest lead of the second half.
Cisco grabbed a rebound of Maldunas’ missed layup with 32 seconds left to set up the Lions’ final possession.
Six point leads by Columbia in each half were the largest in the game, and the second half was tied six times.
Barbour added 13 points for the Lions, including 6 of 6 on free throws, and Van Green scored 10 off the bench.
Jvonte Brooks scored 17 points to pace Dartmouth, with David Rufful getting 14 and R.J. Griffin 13.