Aquamarine is metaphysically known as a stone of courage and fortitude. It is said to assist with quick intellectual response.
It gives peace and shielding for the aura. Aquamarine is reputed to assist with calming communication issues. Mystical and folk lore states that it is attuned to the sea, and protects travellers on water, and sailors.
Aquamarine is generally blue or blue/green and is associated with the throat chakra.