The Diamonds
Founded1910 in New York City
Years activec. 1910-present
TerritoryVarious neighborhoods in New York City, New Jersey, Connecticut, New York, Boston, Reno, Dublin, Warsaw, and San Francisco
EthnicityFull members are Irish, Irish-American, Polish or Polish-American. Other ethnicities are employed as "associates."
Membership11,000 made members, 4,000 associates.
Activitiesdrug trafficking, arms trafficking, cigarette smuggling, alcohol smuggling, illegal gambling, prostitution, racketeering, bookmaking, loan sharking, extortion, murder, theft, money laundering, car-jacking, arson, counterfeiting, contract killing, point shaving, airplane hijacking, conspiracy, assault
AlliesGenovese, Gambino, Bonanno, Colombo, Lucchese crime families, Chicago Outfit, The Westies, North Side Gang, Winter Hill Gang, Polish Mob, Bloods, Patriarca crime family, The Washington Crew,
RivalsRussian Mafia, Albanian Mafia, Crips, MS-13, Latin Kings, La Raza Nation, Folk Nation, Mexican Mafia, D.C. Blacks, Aryan Brotherhood, Nazi Low Riders, Puiblic Enemy No.1, Folk Nation, People Nation, Klu Klux Klan, Israeli mafia, Asian Boyz, Hell's Angels