Gemstone necklace with lapis lazuli (blue) crystal pendant on gold cable chainNecklace with lapis lazuli (blue) lentil 'smartie' (11mm wide) crystal gemstone charm pendant on 22 Carat gold vermeil cable chain with spring clasp. Customers opt for a 16 inch (41cm), 18 inch (46cm) or 20 inch (51cm) chain. Most teenagers and adults wear an 18 inch chain. Vermeil is a high quality form of gold plating in which a thick layer of gold (this must be more than 2. 5 microns and between 14 Carat and 22 Carat) is coated over 925 Sterling