The Diamond Throne is a large, crystal throne that sits within the Hall of Sovereigns, the central room of the Citadel. According to popular folklore, the throne is said to be a living entity with a mind of its own. This ties in to the ancient Prophecy of Kings. The throne detects whether the ruler is a righteous and just leader fit to be crowned High King/Queen of Valedonia.

The emblematic nature and sheer power of the throne has resulted in it being dubbed "the greatest seat in Valedonia". It has been the subject of a whole plethora of wars.

In recent years, the throne has been usurped by the Darkclaw Brotherhood, engulfing Valedonia in turmoil as an unjust, malevolent ruler sits upon the throne.