18kt yellow gold butterfly fastening stud design peridot totalling 1.28 carats round cut diamonds totalling 0.14 carats for pierced ears stone: 5mm earrings: 7.1mm These earrings come as a pair. To ensure the shine and polish of your David Yurman piece, wash with a little non-bleach, soapy water and wipe clean with a soft cloth. 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.