Georgian Rose Diamond Ring Circa. 1830 European This spectacular ring was made at the end of the Georgian era. 18K gold tested with 18K acid. Silver top. Three rose cut diamonds. Diamonds tested with a diamond tester. Center stone measures 1 carat. Two other stones measure a total of .25 carat. Total diamond weight is approximately 1.25 carats. Foil backed (closed back) settings. Difficult to ascertain exact measurements on closed back diamonds. The face of the diamond measures approximately 3/4 inch high and 1.2 inch wide. Size 7 1/4 Can be easily sized by a jeweler. A spectacular ring.