Hypo allergenic cubic zirconia diamond replacement screw back studs new 5 mm

These are beautiful and made to look like invisa sets. ( 4 princess cuts put together) They are between 5-6 mm each earring I can not figure carat on these. They have heavy basket settings and screw backs. Excellent quality Aya Sofya from 1980’s-1990’s. I’m sending a blank back card with incase you want to give them as a gift. Enjoy!