There are two Aries birthstones: aquamarine and diamond. The zodiac sign Aries encompasses the dates from March 21 to April 19, so the March birthstone is aquamarine, and the April birthstone is diamond.
Aquamarine is a turquoise-colored stone comprised of the mineral beryl. Qualities such as friendship, loyalty and bravery are associated with the stone. Due to the tranquil ocean-like colors of aquamarine, the stone provides a calming effect.
A diamond is a white-hued clear stone that is comprised of the element carbon. It symbolizes relationships, energy and purity. This surprisingly common stone is the most popular gemstone in the world.