18K Gross Wt: 3.67 gm, Net Wt: 3.59 gm, Dia Wt: 0.40 ct 14K Gross Wt: 3.28 gm, Net Wt: 3.20 gm, Dia Wt: 0.40 ct 9K Gross Wt: 2.74 gm, Net Wt : 2.66 gm, Dia Wt: 0.40 ct