18kt yellow gold Vesta sapphire necklace18kt yellow gold polished finish cable link chain charm detail pav setting round cut blue sapphires totalling 0. 61 carats spring ring fastening 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.