"In simple terms, diamagnetic materials are substances that are usually repelled by a magnetic field. Electrons in an atom revolve around the nucleus, and thus possess orbital angular momentum. The resultant magnetic momentum in an atom of the diamagnetic material is zero."
Yes, if this material is diamagnetic without being a superconductor it is by far the strongest such material we've ever found. 15x stronger than pyrolitic graphite.
From what I heard, it would. This kind of diamagnetism would be strong enough to be potentially interesting in other applications and research, if it turns out not to be a superconductor.
Not over a single dipole magnet. The "shape" of the field wouldn't make it stable, you'd need to add other magnets or a piece of string to stabilise. As I understand stable levitation over a dipole magnet is indicative of flux pinning which is a property exclusive to type II superconductors.
"In simple terms, diamagnetic materials are substances that are usually repelled by a magnetic field. Electrons in an atom revolve around the nucleus, and thus possess orbital angular momentum. The resultant magnetic momentum in an atom of the diamagnetic material is zero."