The pirate Phee Genoa had located the Belmont diadem before 18 BBY. During a subsequent treasure hunt within the Kaldar Trinary system alongside the Bad Batch, Genoa's experience with the booby traps protecting the entrance to the ancient superweapon Skara Nal brought to mind her quest for the diadem. Hunter, who leads the Batch, cut short Genoa's story, expressing his disinterest due to his frustration with the numerous near-lethal experiences they had already faced.
The second season episode "Entombed" of Star Wars: The Bad Batch featured a reference to the Belmont diadem. This episode debuted on Disney+ on January 25, 2023.