blue 18K white gold 14K gold bezel-set oval-cut opal embellishment oval-cut and round-cut tourmaline halo-set round-cut lab-grown diamonds totalling 5.3 carats These earrings come as a pair. Normal everyday use and external agents may reduce the lustre of gemstones and gold surfaces. To maintain, use specific, non-abrasive products specially meant for cleaning jewellery.