sterling silver polished effect cocktail band claw/prong setting round cut grey diamonds totalling 1.96 carats bezel setting smoky quartz totalling 20.51 carats pull-on style 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.