Aquamarine
Aquamarine It is a pale blue, light blue-green, or light green variety of beryl.
In ancient times, aquamarine was used to banish fear and protect the wearer from poisons. The Romans believed it would cure illnesses of the stomach, liver and throat. In the Middle Ages, it was believed to render the wearer unconquerable, quicken his intelligence and cure laziness.
In some systems, it is related to the sign of Taurus and its planetary ruler, Venus.
The gemstones used by Saint Germain are diamond, amethyst and aquamarine. The aquamarine is the feminine counterpart of the amethyst.
Sources
Elizabeth Clare Prophet, October 2, 1987.