18K white gold 145 prong-set round-cut GH VS1 diamonds totalling 13.54 carats prong-set round-cut GH VS1 center diamonds totalling 0.50 carats prong-set round-cut GH VS1 adjacent diamonds totalling 0.35 carats clasp 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.