Take a walk back to Downton Abbey with this detailed, dress it up or down necklace with cobalt black necklace with aqua blue cubic zirconia stones. The aqua blue stones are AAAAA Grade CZ, in which its refractive index, dispersion and hardness is extremely close to those of a natural diamond. It also creates more flashes of color, giving it a fiery and brilliant appearance. An versatile investment piece you will reach for over and over again and want to pass down generations. Pair with simple aquamarine studs - just ask us!