The American Express Centurion Card, known informally as the Amex Black Card, is an invitation-only charge card issued by American Express.[1] An invitation is extended to Platinum Card holders after they meet certain criteria. The Centurion Card comes in personal, business, and corporate variants.
The largest known purchase made with the Centurion card is the Nu couché painting by Amedeo Modigliani, which businessman Liu Yiqian bought for US$170,405,000 at a Christie's auction in New York in 2015.