  Artificial diamagnetics are prominent for achieving extraordinarily strong
diamagnetism in a wide frequency range. However, as far as the magnetic fields
outside the artificial medium are concerned, bulk conductors show a very
similar pattern. The question arises whether the complicated internal structure
of artificial diamagnetics can, to this end, be replaced by a simpler object.
We analyse the figure of merit for the application of diamagnetics in magnetic
levitation, and show that for an electrically small body, any internal
structuring makes the figure of merit worse than that of a simple conducting
object.
