We The Aquarius Necklace features a large cubic zirconia, which is an alternative birthstone for the month of April. Cubic zirconia is almost identical in likeness to a diamond with its incredible clarity and sparkle. Only a trained expert eye can recognize a cubic zirconia from a diamond due to its striking resemblance. ----- 14kt gold filled chain • cubic zirconia Length: 16in + 2in extension chain, 6x6mm CZ