Aquamarine is associated with the March Birthstone, the Throat Chakra, and the Zodiac signs Aries, Gemini, Scorpio, Aquarius, and Pisces. Aquamarine is the stone of courage. Aquamarine clarifies perception, sharpens intellect and clears confusion. Promotes tranquility, inner strength and peace. Aquamarine is a soothing stone and is powerful for use during meditation as it shields the aura and aligns the chakras.