These round style Teufel Motion/Swinger earrings have 0.60 carats of Blue Sapphire and 0.28 carats of full-cut round brilliant Diamonds. 14k yellow gold. These unique and eye-catching earrings utilize a stainless steel center shaft for strength and durability and a precision ball bearing system for movement. All of the other parts of the earrrings are solid 14k Gold. These earrings are precision engineered with a counter balance to create smooth, fluid movement. Teufel motion earrings require virtually no special care (beyond that which you treat your other fine jewelry items) and are VERY durable, providing the fun without the fuss!