18K Gross Wt: 7.50 gm, Net Wt: 7.30 gm, Dia Wt: 1.02 ct 14K Gross Wt: 6.70 gm, Net Wt: 6.50 gm, Dia Wt: 1.02 ct 9K Gross Wt: 5.61 gm, Net Wt : 5.41 gm, Dia Wt: 1.02 ct