Diamond Ring 14kt Two Tone Gold. This beautiful ladies diamond ring in 14kt two-tone gold is set with one marquise cut diamond (0.25ct) and sixteen round brilliant cut diamonds (0.28cttw). The ring was cast, assembled and handset. It is hallmarked: 14Kt. Ring size: 6 3/4, very good condition and includes an insurance appraisal of $1875.00.