About Diamond Sportsbook International

Headquartered in San Jose, Costa Rica, Diamond Sportsbook International (DSI) is the leader in providing play for fun and prizes online wagering on all of your favorite sporting events including, NFL & NCAA football, NBA and college basketball, MLB baseball, NHL hockey, horse racing, NASCAR, boxing, and much more.


Edificio La Colmena,Floor 7, 75m West Contraloria
San Jose, Costa Rica, Central America

Toll Free:

  • US and Canada: 877.223.8374
  • United Kingdom 0.800.028.0308
  • International: +011.506.2210.7824
  • Fax: 866.833.5495


DSI Facts

  • Online Since 1998
  • Federally Licensed in the Republic of Costa Rica
  • DSI Casino CFG - Fair Gaming Certified