18K Gross Wt: 3.37 gm, Net Wt: 3.24 gm, Dia Wt: 0.65 ct 14K Gross Wt: 3.02 gm, Net Wt: 2.89 gm, Dia Wt: 0.65 ct 9K Gross Wt: 2.54 gm, Net Wt : 2.41 gm, Dia Wt: 0.65 ct