One day at the Dalcroze College, Sergei Diaghilev, watched a class and then asked her to come back to Berlin and study with him in the Ballets Russes. There, Rambert aided them with figuring out Igor Stravinsky's "The Rite of Spring" with Vaslav Nijinsky. She hesitantly accepted and collaborated with the Ballets Russes led by Diaghilev from 1912–1913. In Ballet Russes she was in the corps de ballet for ballet performances such as "Swan Lake", "Giselle", and "Scheherazade". After a tour with Nijinsky and Ballet Russes, Rambert's contract was not continued and she decided it was time for a new chapter. In 1914 she moved to the United Kingdom, and studied under Enrico Cecchetti.