18K Gross Wt: 3.84 gm, Net Wt: 3.70 gm, Dia Wt: 0.70 ct 14K Gross Wt: 2.70 gm, Net Wt: 2.55 gm, Dia Wt: 0.74 ct 9K Gross Wt: 2.89 gm, Net Wt : 2.75 gm, Dia Wt: 0.70 ct