18K Gross Wt: 2.07 gm, Net Wt: 1.91 gm, Dia Wt: 0.82 ct 14K Gross Wt: 1.84 gm, Net Wt:1.68 gm, Dia Wt: 0.81 ct 9K Gross Wt: 1.58 gm, Net Wt: 1.42 gm, Dia Wt:0.82 ct