Andy Warhol's Liz Taylor Portrait To $ell BIG

The big seller at the Christie’s auction in London on June 30th is said to be Andy Warhol‘s portrait of Elizabeth Taylor entitled Silver Liz.
It is estimated to be worth $9-12 million and the two auctions that make up the series are expected to garner $78 – $111 million.
The portrait, which has been unseen in public for the last two decades, will be among favorites from Jeff Koons, Jean-Michel Basquiat and Andreas Gursky.
How much would U pay?!