Aquamarine has the color of the sea, blue and greenish overtone. It symbolizes strength and perseverance. It was thought to offer protection to sailors in ancient times.
The other choice for those born in the month of March is Bloodstone. It also symbolizes strength and perseverance. Mineralogically it is a type of chalcedony, a form of cryptocrystalline quartz. It is a green stone with red flecks or spots. The red spots resemble blood, associating it with bravery in battle. It has also been associated with the martyrdom of Christ.