9kt yellow gold Martha pearl stud earrings9kt yellow gold polished finish post back fastening crystal embellishment freshwater pearl for pierced ears 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. 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