Casato 18K yellow gold diamond and chalcedony signet ring
From Farfetch
gold-tone 18K yellow gold cushion-cut chalcedony gemstone pavé-set round-cut diamonds totalling 0.65 carats polished finish 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.