Increase personal clarity. Once used as an amulet to protect a person from the plague, pestilence, and the Evil Eye. It was believed to drive away madness, wild beasts, demons, and devils. Losing a diamond was considered an omen of bad luck. Some people believe that if you dip a diamond in water… That water would acquire healing properties. It was also believed that if you dipped a diamond in a mixture of water and wine… the mixture would have the ability to make a person immune to gout, jaundice, and apoplexy. Diamonds have had a reputation for keeping the body in tune with the infinite, which in turn helps a person to withstand the pressures of the material world.