Diamond Filigree Ring 18kt White Gold. Antique reproduction style domed filigree solitaire ring with one round brilliant cut diamond. The diamond weighs 0.23cts and has a faint blue fluorescence, very good polish and good symmetry. The ring is hallmarked: S18K; Ring size: 8 1/2. Included is an insurance appraisal of $1449.00. The ring is in fair but repairable condition.