It is common for cubic zirconia to be mistaken for diamonds. This is because they are so close to diamonds in terms of their hardness and brilliance. Since it is not a real gem, its price is low and this makes it a good choice for costume jewelry. Natural body oils, lotions, hair sprays and other cosmetics used by the wearer often come into contact with cubic zirconia and can easily dull its surface.
With a solution of soap and warm water, you can restore your cubic zirconia jewelry to its original shine. Scrub gently with a soft brush, taking care of the stone and any settings used on the piece. Rinse thoroughly with clean warm water and pat the stone dry with a clean soft cloth. Wash your cubic zirconia pieces regularly to keep them brilliant for long.