18kt yellow gold Micro Chain necklace18kt yellow gold polished finish 46 cm 18 inch knife edge adjustable cable link chain triggerless clasp fastening All products are handcrafted. 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.