sterling silver polished finish stud design bezel setting hexagon-cut black diamond totalling 0.5 carats post-back fastening for pierced ears Please consider that this is sold as a single earring. Hallmarked in the United Kingdom at the London Assay Office. 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.