Amedeo Modigliani’s Nu Couché (1917–18) soared past its already astronomical $100 million on-request estimate en route to a record-smashing price of $170.4 million at Christie’s Monday night, making the magnificent nude portrait the second-most-expensive painting ever sold at auction—and, in a twist, a high point in an otherwise surprisingly tepid evening. The Artist’s Muse, the auction house’s […]