Rhodium plated sterling silver CZ frame stud earrings. These frame studs measure 10mm, and will accommodate 5mm CZ studs such as our CZ birthstone line of earrings. To order the birthstone stud earrings, use E + the appropriate month, i.e. EJAN, EFEB, EMAR, etc. CZ earrings to be worn in the center are sold separately. .925 Sterling Silver