18K Gross Wt: 4.03 gm, Net Wt: 3.87 gm, Dia Wt: 0.80 ct 14K Gross Wt: 3.80 gm, Net Wt: 3.39 gm, Dia Wt: 0.92 ct 9K Gross Wt: 3.03 gm, Net Wt: 2.87 gm, Dia Wt: 0.80 ct