18K Gross Wt: 3.32 gm, Net Wt: 3.15 gm, Dia Wt: 0.83 ct14K Gross Wt: 2.98 gm, Net Wt: 2.81 gm, Dia Wt: 0.83 ct 9K Gross Wt: 2.27 gm, Net Wt : 2.10 gm, Dia Wt: 0.83 ct