1.65 cttw Emerald & Round Diamond Past Present Future Halo 14KT Engagement Ring. This ring is a size 6 3/4. In the center of the engagement ring is one emerald cut diamond with a carat weight of 0.81 ctw. This diamond has a clarity range of SI1 with a good cut and a G color. The center diamond is inscribed GSI 85198400101A. This engagement ring features an additional two emerald cut diamonds (inscribed GSI 8519840010 B/C). These emerald cut diamonds have a clarity range of VSI1 to VS2 with a color range of F to G. The engagement ring also features 76 round brilliant cut diamonds with a clarity range of SI2 to I1 with a color range of G to I. The total approximate diamond carat weight of this engagement ring is 1.65 cttw.