A valuable transparent white gemstone worth upwards of 5,000 gp, although small quarter-carat offcuts worth as little as 50 gp are used as spell components. Sometimes tinted blue, bluish-white, golden, pink, or brown. Diamonds are among the most valuable of gemstones, valued at around 200 gp per carat. The diamond dragon is named for this gemstone. The diamond golem is a rare creature composed entirely of that mineral. Diamond is said to work in magic that makes the bearer invulnerable to undead.