On a shield shaped embroidered device arched at the top, 3 inches (7.62 cm) in height by 2 1/4 inches (5.72 cm) in width overall, consisting of a field blazoned: Argent, a sword in pale, hilt to base Sable entwined by a stylized comet, its contrail Gray garnished Gules issuing from sinister base and terminating in sinister chief, all within a 1/8 inch (.32 cm) border of the last. Attached above the shield, a Gray scroll inscribed "CARTHAGE" in Black letters within a 1/8 inch (.32 cm) Red border.
Red and gray are the school's colors. The comet is the school's mascot.
The shoulder sleeve insignia was approved on 1 December 2005.