18K Gross Wt: 5.48 gm, Net Wt: 5.11 gm, Dia Wt: 1.86 ct 14K Gross Wt: 4.92 gm, Net Wt: 4.55 gm, Dia Wt: 1.86 ct 9K Gross Wt: 4.16 gm, Net Wt: 3.79 gm, Dia Wt: 1.86 ct