Mzia Nioradze was a finalist at the International Voice Competition Elena Obraztsova and Rimsky-
Since 1996, Mzia Nioradze is a guest artist at the St.Petersburg Mariinsky Theatre, where she made her debut in the title role of Carmen. In that Teater she hes performed all the leading Verdi roles as well as the leading mezzo and contralto roles of the Russian repertory. She went on tour with the Mariinsky Teatre to Israel; in 2000 she took part in the new production War and Peace conducted by Gary Bertini at Opera National de Paris Bastille.
In 2001 Mzia Nioradze made her United States debut as Konchakovna in a new production of Prince Igor at Houston Grand Opera conducted by Alexander Anissimov (production: FrancescaZambello), followed by Eboli in Essen and St. Petersburg, and a debut at the San Francisco Opera as Paransema in Arshak II, which opened the 01-
Mzia Nioradze made her Metropolitan Opera debut in War and Peace singing the roles of Elena, Matriosha and Mavra Kusminichna, as was also featured as Maddalena in Rigoletto. In San Francisco she sang the title role in Carmen. She returned to Lyon as Marina in Boris Godunov and sang Dalila in St.Petersburg conducted by Valery Gergiev. She was highly praised for her performances of Azucena in Trovatore in Marseille.
Mzia Nioradze sang Azucena in Il trovatore (Toulon Opera), Die Walkure (Frika), Das Rheingold (Frika) (Japanese tour of the Mariinsky theatre, conductor Valery Gergiev), Azucena in Il trovatore (Santiago de Chili), Verdi's Requiem (Rio di Janeiro). Adalgisa in Norma at Opera de Vichy. Ulrica, Azucena at the Metropolitan New York, 2007 recording of her Azucena in Orange Festival with Roberto Alagna, Aida in Nizza, Azucena at Opera de Lausanne. Suor Angelica, La Zia Principessa Miami, Florida Grand Opera, Norma Opera de Massy, 2010 recording of her Azucena with Marcelo Alvarez in Teatro Regio di Parma , 2010 Azucena opera di Massy. In 2012 Azucena at Opera in Avignon, Amneris in Oslo, Ulrica -
In 2013 Marina Mnishek in Boris Godunov with Tel Aviv Opera.
In 2014/15: Azucena in Il trovatore – Gozo, Vilnius, Riga; Iolanta -
In 2016: Azucena in Il trovatore – Vilnius; Iolanta (Marta) – Warsaw and Florence.