18K Gross Wt: 2.61 gm, Net Wt: 2.46 gm, Dia Wt: 0.77 ct 14K Gross Wt: 2.20 gm, Net Wt: 2.05 gm, Dia Wt: 0.77 ct 9K Gross Wt: 1.97 gm, Net Wt : 1.82 gm, Dia Wt: 0.77 ct