Hellfire Ring is a shared name for several types of craftable legendary rings in Diablo III. All of these rings require character level 1 to be equipped and give a substantial experience boost (highest in game: +35% for level 60 and +45% for level 70, whereas Leoric's Signet offers 30%), making them ideal for leveling up new characters, and of limited use for obtaining Paragon levels (as at maximum level, experience bonus is decreased to 1/10).