Aquamarine has come to be associated as the contemporary birthstone for the month of March. Aquamarine has been a prized stone in a variety of societies for millennia because of its pure and even blue or blue-green color, potentially large size, and sparkling clarity. Aquamarine is also known for its sparkle. Because emerald and aquamarine are both varieties of the same stone species, emerald, and aquamarine are related to one another.