18kt white gold polished finish flat band claw/prong setting 0.5ct laboratory-grown round brilliant-cut diamond pavé setting laboratory-grown round-cut diamonds totalling 0.81ct 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. Includes an IGI Diamond Report. This certification from the International Gemological Institute assesses diamonds' cut, colour, clarity and carat weight according to strict international standards.