18kt yellow gold polished finish cable-link chain locket pendant pavé-set pear-cut green emerald totaling 0.6 carats pavé-set round-cut white diamonds totaling 0.36 carats lobster claw fastening length: 20" 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. Hallmarked in the United Kingdom at the London Assay Office.