RHODIUM RADIENT DROP EARRINGS.Our items are cast using the same process as fine jewelry. The only difference is that we use brass also known as Jewelers Bronze as the core of our pieces. All of our items are hand-polished to a mirror finish and plated with a double-dip layer of luxurious Genuine Rhodium and/or 18K Gold. Our stones are premium quality hand-set Cubic Zirconia (CZs). Unlike crystal (which is a form of glass) CZ stones are harder and far more brilliant much like genuine diamonds.All of our BLUE LUSTER jewelry carries an unconditional lifetime guarantee an additional assurance that our jewelry is the finest in the market.