18K Gross Wt: 3.50 gm, Net Wt: 3.36 gm, Dia Wt: 0.70 ct 14K Gross Wt: 2.85 gm, Net Wt: 2.70 gm, Dia Wt: 0.74 ct 9K Gross Wt: 2.63 gm, Net Wt : 2.49 gm, Dia Wt: 0.70 ct