Dialyna won the Star Hellas Pageant title, (Greek: Μις Σταρ Ελλάς) and went on to represent Greece at the Miss Universe 1954 pageant that was held in Long Beach, California. Rika, along with Miss Korea, Pu Rak Hi, were denied entry into the U.S. because of their alledged Communist affiliations. Dialyna was disqualified from obtaining a U.S. visa for allegedly illustrating a book on Communism. In her place went first runner up, Effie Androulakakis, who won the Miss Friendship award. U.S. Secretary of State John Foster Dulles intervened in Rika's case and she was able to optain a temporary entry permit. She arrived just a few days prior the event making the top 16 finalists. Effie Androulakakis was asked to remain in the competition as Miss Crete but she declined stating that Rika was "the choice the people of my country to represent them here." While in the United States, Rika fell in love and got married.
She has starred in the films:
- Λαός και Κολωνάκι - Common folks and High Society
- Να ζήσουν τα φτωχόπαιδα - Long live the poor!
- Ενας βλάκας και μισός - The grand idiot
- Ραντεβού στην Βενετία - A date in Venice
- Εθελοντής στον έρωτα - Love's volunteer
and many others.
Dialyna also took painting lessons. In 2002, her art work was put on display at the Benedictine Art Awards, her work being one of 40 to make the Park Avenue Art Gallery out of 2000 that participated in the event.
- She speaks fluent English
- She appeared as a party guest in Federico Fellini's "Juliette and the Spirits" where she is actually greeted by her real name "Ciao Rika".
- She is the aunt of prominent Greek molecular genetist, George Dialynas
- In the States she met Elia Kazan who introduced her to acting coach Wyan Handman.
- She appearred in the movie Summer Lovers with Daryl Hanna
- Her daughter was born in the United States