Discover our range of ethical and natural Aqua Chalcedony jewellery, including earrings and statement rings. Aqua Chalcedony is the March Birthstone and is a cool blue-green translucent gemstone : The name of this stone is said to come from the Greek port city of Chalcedon. Chalcedony is said to be known for magnifying its crystal energy to soothe and balance and has the power to align the mind, body, and spirit. This stone also sends feelings of generosity and kindness to you. Chalcedony removes self-doubt and builds self-confidence, and is a great aid for throat Chakra.