Levitating lamps are nothing new. We have covered a bunch of elegant ones here in the past. The Levia lamp is also worth a look. It is a levitating marble lamp that uses electromagnetic induction and magnetic levitation. The base is made of Carrara or Black Marquina.
The Levia desk lamp levitates the bulb at 20 cm. Thanks to its anti-fall system, the bulb attaches to the upper part in case of a power outage.