This 18K white gold Kimberley Mcdonald aquamarine diamond pendant necklace features a white gold chain with a lobster clasp fastening and aquamarine pendant caged in sparkling diamonds. In ancient lore, aquamarine was believed to be the treasure of mermaids, so along with a dinglehopper and a snarfblatt, this Kimberley Mcdonald necklace is one of your most prized possessions.