A cache of unmounted gems, jewelry and watches found in the hollow bottom of a filing cabinet in the late Andy Warhol's townhouse brought $1.64 million at auction, according to Sotheby's.

The highest price paid at Sunday's auction in New York was for a 7.8 carat diamond ring, bought for $198,000 by an anonymous dealer, said a spokeswoman for the auction house.The cache was discovered in June when two curators of the Andy Warhol Foundation were preparing to move two filing cabinets, which were stacked on top of each other and used to store drawings and prints.