Aquarius (21 January-19 February) is the eleventh sign of the zodiac, its element is air.A rare, vintage reverse crystal zodiac charm sits with three other charms to celebrate the star sign Aquarius: a water bearer symbol, a purple sparkling Swarovski crystal to represent an amethyst birthstone and a Uranus Meniscus charm, the ruling planet of Aquarians. All hang from a fine sterling silver chain in a choice of four lengths (please select preferred length below). Metal: All sterling silver.