Gem dragons is a classification of dragon in the role playing game Dungeons & Dragons, typically of neutral alignment. Their deity is Sardior the Ruby Dragon. Crystal Dragons are fun-loving and mischievous, irresponsible rulers who rely on their vassals. They establish domains in the cold, open northern reaches, building castles out of snow and ice.
See Special:Whatlinkshere/Etymology:Crystal Dragon for a list of articles using this term.