Diana Daniel was born in Curitiba, Brazil. She has  a bachelor's degree from the Boston Conservatory, a graduate degree from the Royal College of Music, London, and is currently pursuing Professional Studies at Mannes College, where she is a student of Ruth Falcon. 

At Mannes, Diana recently sang the Marschallin in a scene from Strauss's Der Rosenkavalier with the Opera Workshop. In 2010 she had her Carnegie Hall solo debut with the concert Route to Brazil. Also in NYC she was the principal soloist in The First of Love, a new opera by Ursula Kwong-Brown performed at Miller Theater, Lady 1 in Empire Opera's The Great Supper, and sang at Christ and St. Stephen's Church during the Alissa Grimaldi Performance Series. 

At the Guaira Theater in Curitiba, Diana sang the roles of Chip in Menotti's children's opera Chip and his Dog, Zerlina in Don Giovanni, Flora in La Traviata, and Virginia in the world premiere of Jaime Zenamon's contemporary opera O Fantasma de Canterville, working with conductor Alessandro Sangiorgi and the Parana Symphony Orchestra. At Capela Santa Maria she sang Lucy in The Telephone and Laetitia in The Old Maid and the Thief, and performed in recital with the Salzburg Chamber Soloists Trio. Other appearances in Curitiba included a recital with the PUC Chamber Orchestra at the PUC Theater, and a solo recital at the HSBC Theater.

In London she performed Claude Vivier's Bouchara in the New Perspectives Concert at the RCM, and Fernando Covello's Lenore at the National Portrait Gallery. During the 2008 London Handel Festival she sang Cleofe in La Resurrezione, for which her singing was deemed 'excellent' in The Independent. 

Also in 2008 she had her Italian debut as Zulma in Rossini's L'Italiana in Algeri at the Teatro Comunale di Adria.

In Boston, full and partial opera roles included Ankhesenpaaten in Philip Glass's Akhnaten, Hermia in A Midsummer Night's Dream, Ottavia in L'Incoronazione di Poppea, and Cherubino in Le Nozze di Figaro.    

Though she started as a mezzo and ventured in lighter soprano roles, Diana is currently exploring meatier soprano material. An updated repertoire list will be up soon!