18K Gross Wt: 3.44 gm, Net Wt: 3.18 gm, Dia Wt: 1.31 ct 14K Gross Wt: 3.09 gm, Net Wt: 2.83 gm, Dia Wt: 1.31 ct 9K Gross Wt: 2.62 gm, Net Wt : 2.36 gm, Dia Wt: 1.31 ct