Embassy is normally a term for the main representative office of another country in the capital city of Saudi Arabia and primarily headed by the Ambassador.
Foreign Consulate General or Consulate is a lower level diplomatic representative office, often stationed in a city outside of Riyadh and is typically headed by the Consul-General official.
Honorary Consulate – This lower level office is normally run by a local business person who agrees to carry out limited consular duties in a city where the foreign country does not have a representative.
Diplomats of foreign countries deals in making agreements, attend state dinners, or organize or represent the policies and interests of foreign country. The duties and tasks of diplomats are significantly varied.