This cool, water-colored beryl has a long history of use as a curative substance. In common with many other blue or green stones, aquamarine was used to cure eye injuries. Remedy was effected in one of two ways. The first method involved grinding the stone very finely, passing the particles through a sieve to remove impurities. A small quantity of powder was then placed in the injured eye, and the patient was instructed to lie still until it took effect. The alternative measure was to soak the stone in water which was then used to bathe the injured eye.

Rubbing swollen glands with an aquamarine was believed to reduce the swelling, while wearing it prevented spasms, convulsions, and liver ailments. Aquamarine was believed to be a cure for the hiccups! Sufferers had only to drink water in which an aquamarine had been dipped to gain instant relief.