EDWARDIAN ENAMELED AND DIAMOND PORTRAIT PIN Circa 1850-1875: Portrait circled by diamonds set in a 14k yellow gold and sterling silver pin. Approx. .65ctw of rose cut diamonds, rated VS-SI in clarity and H-I in color. Enameled portrait in profile on metal (probably copper). The diamonds are prong set in sterling silver. Bar pin closure. Weight: 5.3 grams, approx. 1'' dia.