rhodium vermeil hand-set laboratory-grown opal totalling 21 carats laboratory-grown blue sapphires totalling 9.9 carats laboratory-grown black diamonds totalling 0.2 carats flower design aluminium flower petals 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.