Browse our collection of genuine emerald lockets for a luxurious addition to your jewellery box. Emerald, a member of the beryl family, is a precious gemstone and the birthstone for May. Symbolising good luck or happiness, the emerald locket is also a perfect gift for a 55th wedding anniversary. This brilliant green stone was the favourite gemstone of Cleopatra and never goes out of fashion. Shop our Emerald Lockets below.