18K Gross Wt: 6.98 gm, Net Wt: 6.62 gm, Dia Wt: 1.80 ct 14K Gross Wt: 5.16 gm, Net Wt: 4.89 gm, Dia Wt: 1.33 ct 9K Gross Wt: 5.27 gm, Net Wt: 4.91 gm, Dia Wt: 1.80 ct