A lifting clamp for a workpiece such as plate material, comprising a bearing part and a clamping arm which is rotatably connected to the bearing part above said bearing part and at one end is provided with a clamping face for the purpose of clamping a part of the workpiece between the bearing part and the clamping face, and at the other end of the clamping arm is provided with a lifting eye, the bearing part comprising at least one magnet.