The "Laser Light Cannon" is a powerful magical cannon that was once owned by the late Rose Quartz. It is the debuted and titular object of the episode "Laser Light Cannon", in which it was used to destroy the Red Eye, and seen in "Rose's Armory" during "Rose's Scabbard" and then is seen again in "The Return", in which it was used in conjunction with the Quartizine Trio (referred to as a Quartizine Quartet in a sheet model) in an unsuccessful attempt to destroy the incoming Gem Warship.