Blue Chalcedony Drop Necklace. 14KT Gold filled chain. (Approx. 16” length). Inspired by the Beautiful Blue hues of the Sea, this stunning Blue Chalcedony Drop was created to make a statement! Wear this Necklace by itself or with a longer Necklace to give you a LAYERED LOOK. A creative stone, Blue Chalcedony imparts mental flexibility and verbal dexterity. It stimulates the ability to learn new languages and improves memory. Gives feelings of light-heartedness and optimism. Improves self-perception.