Sterling Silver Round Three Stone Cubic Zirconia Stud Earrings 5ct tw. 5 Carats of cubic zirconia ( 3ct diamond size) Post with friction backs Earrings measure 5/8 inch ( just over 1/2 inch) .925 Sterling Silver settings and friction backs 5 Carats of cubic zirconia ( 3ct diamond size) Post with friction backs Earrings measure 5/8 inch ( just over 1/2 inch) .925 Sterling Silver settings and friction backs