Silver plated brass necklace with genuine Aquamarine stone. Each stone is unique. Size and shape may vary slightly. Chain Length: 16" with 2" extender. This delicate necklace is the perfect way to show off the mesmerizing beauty of natural aquamarine. Showcase the uniqueness of the stone with its one-of-a-kind shape and size. With an adjustable chain length up to 18 inches, you can find your perfect fit.