18kt recycled gold polished finish 43 cm / 16.9 inch delicate chain claw/prong setting pavé setting round brilliant-cut white diamond totalling 1.0 carat 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.