The ruby ring, also known as Jude's ring, was a ring that Cardan Greenbriar stole and wore himself until using it to propose marriage to Jude Duarte.
History[]
Cardan Greenbriar stole the ring from Jude, but later returned it when asking her to marry him. After being exiled, Jude gave it to Oak to keep safe. He later gave it back right before Cardan was turned into a serpent.