From timeless pearls to flashy cubic ziconia to simple gold earrings - this is the perfect starter set for your little princess. 10K gold ensures quality and timelessness, all earrings feature posts with friction-back back-findings for a secure fit. Cubic zirconia studs measure 1/8 inches in diameter. Ball studs measure 3/16 inches in diameter. Pearl studs measure 1/4 inches in diameter. Heart studs measure 1/4 by 1/4 inches.