A seat on the Gem Council of Bismuth. The Diamond Representative keeps a close eye on Bismuth's mining operation, the town's main source of wealth. Their purpose is to bring any issues affecting mining to the rest of the council so that they can discuss and vote on how best to resolve them. The Diamond seat is most often held by someone who has worked in the mines. This Representative's goals often align with the Sapphire Representative's goals, as mined stones and metals are Bismuth's main export. This Representative must also negotiate with the Topaz Representative when proposing the building of new mines.