On a Silver color metal and enameled device 1 1/8 inches (2.86 cm) in height overall consisting of a shield blazoned: Grebe, a pile reversed Vert charged with a lightning streak Silver Gray, in chief a cap of the second between two lightning flashes of the second, voided of the field descending to the dexter and sinister, below inscribed upon a scroll of the last, "STEINMETZ COLLEGE PREP" in Silver letters.
Green and silver are the school colors. Green is symbolic of the courage of cadets as leaders in the school and the community while silver signifies their determination to succeed in all endeavors. The lightning streak is the school's mascot which reflects the pride, honor and loyalty of the cadet's military training.
The shoulder loop insignia was authorized 19 July 2013.