The Diamond Spray River originates in the part of the Sky Kingdom near Queen Ruby's Palace, flows down the east coast of Pyrrhia, and eventually leads to the Diamond Spray Delta. The river is presumably a famous river since its location is published on the A NightWing Guide to the Dragons of Pyrrhia. The river was used as an escape route for the Dragonets of Destiny to get away from the Sky Kingdom.
It is clear when there has not been a battle for some time, otherwise, it is flooded with dragon blood.
- The river is the only river to have named publication on any of the Pyrrhia maps (Arc 1, Arc 2, and Legends)
- There is a passageway from Queen Ruby/Tourmaline's Palace to the Diamond Spray Delta.