The Dwarf-Lord Rings
Much less is known specifically about the seven rings gifted to the Dwarves, other than they did not work on Dwarf-kind as Sauron had first intended, finding the Dwarves’ natural hardiness rendered them less capable of being mind controlled. The Dwarven rings all somehow had magical abilities that would help their bearers acquire vast wealth, and were used by the Lords to establish the grand treasure hordes of their peoples. But like the rings of power gifted to the Men, they also had secret negative traits—like their ability to guide the user to wealth eventually, transforming them into greed-addled hoarders.
By the climax of the Third Age, four of the seven rings had been destroyed, consumed by fire in the treasures of Dwarven kingdoms ravaged by dragons, with the remaining three re-acquired by Sauron.
