The Diamond Lounge is available to Business Class customers. The lounge is in Concourse B, past security, above gate B04 and is open daily 5 AM - 10 PM.
A201, 1930 Zaventem, Belgium
Ticket counter: main terminal, opposite row 8
Check-in: row 8, first 4 counters
Gate B, level 3 (departures), main terminal