The Black American Express card is the Centurion Card, which is invitation-only
You cannot apply directly for it
Use and maintain a strong American Express relationship over time
Spend heavily on eligible American Express cards
Keep a very high annual spend, often in the six figures or more
Maintain excellent payment history with no late payments
Have a strong credit profile
Be an existing Amex customer in good standing
Wait for an invitation from American Express
If invited, complete the required application and fee process
Meet any additional eligibility requirements set by American Express