The Beavers struggled to shoot from downtown in the contest, making only 1-of-24 from beyond the arc and finished the game shooting only 23.6 percent from the field overall.
Cone led BVU with nine points and five rebounds while Abby Nagel was right behind with eight points, including 4-of-5 from the charity stripe. Danika Demers chipped in with six points, a team-high nine rebounds, and dished out four assists and added three steals.
Haylie Strum and Lizzie Kauls each scored 15 points to lead Luther (5-4, 3-1 A-R-C).
Buena Vista falls to 1-6 on the year (0-3 A-R-C) and will host Martin Luther College on Wednesday, Dec. 13 at 6 p.m.