The ring is 18K Yellow Gold. There are 4.25ct in Diamonds F VVS. The ring has French Maker Marks on the outside of the ring. The ring comes with Certificate of Authenticity. The ring is a size 6.5, not sizable. The ring weighs 12.3 grams. An elegant Circa 2000 Estate Van Cleef & Arpels Ring. Recently serviced and authenticated by VCA.