14kt yellow gold polished finish cable-link chain adjustable-length chain circular mother-of-pearl pendant claw/prong-set round-cut diamonds 0.04 carats lobster claw fastening 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. Pearls should be the last thing that you put on in the morning and the first thing you take off at night. Avoid contact with perfumes or creams, and simply wipe with a soft cloth to clean.