18K Gross Wt: 3.19 gm, Net Wt: 3.05 gm, Dia Wt: 0.70 ct 14K Gross Wt: 2.50 gm, Net Wt: 2.36 gm, Dia Wt: 0.70 ct 9K Gross Wt: 2.40 gm, Net Wt : 2.26 gm, Dia Wt: 0.70 ct