Ruby

The Ruby is a Jewel in Castlevania. It often appears in a ring (the Ruby Ring) and is associated with the Fire element.

The Ruby in Castlevania: Order of Ecclesia is an item that by itself does nothing. It is needed for Laura the Jeweler's A Pleasant Accessory quest. If you bring Laura a Ruby, an Emerald, and a Sapphire, she will make available the Ruby Ring, Ruby Pin, and the rings and pins of the other Jewels brought to her at Jacob's Shop. The Ruby Ring increases the power of the Fire attribute. As such, it is the counterpart to the Sapphire Ring.