18kt yellow gold Unchain My Art pearl and diamond single earring18kt yellow gold polished finish chain link detailing bezel setting claw prong setting freshwater pearl round cut white diamond post back fastening for pierced ears This is a single earring. Hallmarked in the United Kingdom at the London Assay Office. 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.