Brinkley's Square Cut CZ Magnetic Earrings - 5mm Pink Add a splash of fun and flirty color with Brinkley's Square Cut CZ Magnetic Earrings - 6mm Pink. These magnetic CZ earrings are sterling silver. Square cut CZs in these pink earrings are 1 carat. These magnetic earrings will give you the look you want even if you don't have pierced ears!