No Pootersdad, royboy8 specifically asked about Diamond Club.
On FR there is the Concierge Club on deck 10 and the Diamond Club up on deck 14.
As you say, there may be lots of Diamonds and Damond +´s onboard during some cruises and then the overflow are usually assigned a seconday lounge.
"Add all the folks in the suites,...". I would rather say the opposite "add all the Diamonds", since the Concierge Club is primarily intended for guests travelling in suites!