This is a Damien Hirst sculpture of a human skull cast in platinum. Yes, those are all flawless ethically sourced diamonds. The skull is encrusted with 8,601 diamonds. The icy head was reported to have sold for $122 million to an anonymous buyer.
The skull is showcasing its original teeth. But if you ask me it is definitely missing...
See Also:
Bugs, Skulls, and Gold!
Skull Photo Source: White Cube Gallery