18K Gross Wt: 1.98 gm, Net Wt: 1.68 gm, Dia Wt: 1.50 ct 14K Gross Wt: 1.80 gm, Net Wt: 1.5 gm, Dia Wt: 1.50 ct 9K Gross Wt: 1.55 gm, Net Wt : 1.25 gm, Dia Wt: 1.50 ct