The royal ruby of Stormhold belongs to the Stormhold royal family. Because four of seven princes lived when the King of Stormhold was on the edge of dying, he launched it into the sky with the mission of finding the true heir of the throne.

The ruby soared into space and turned into a bright white comet that invaded that area of the cosmos inhabitated by the Stars. The comet then attached itself to a star, revealed later to be Yvaine. After causing the star´s descent, it changed into a diamond-like gem, that Yvaine used as necklace. The Ruby only regained its normal color when touched by the true heir, Tristan Thorne.