18K Gross Wt: 0.73 gm, Net Wt: 0.59 gm, Dia Wt: 0.70 ct 14K Gross Wt: 0.85 gm, Net Wt: 0.69 gm, Dia Wt: 0.80 ct 9K Gross Wt: 0.58 gm, Net Wt : 0.44 gm, Dia Wt: 0.70 ct