Lamoris made her operatic debut as Desdemona in Otello at the Tbilisi Opera and Ballet Theatre where she later sang roles including Violetta in La traviata and Gilda in Rigoletto.

Lamoris has also gained recognition for her role as co-director of the international summer festival "Accademia Belcanto" in Graz, Austria, alongside her sister, Natela Nicoli.

Lamoris achieved recognition in 1994 performing at Operalia, World Opera Competition in 1994[4] hosted by Placido Domingo and Diana Ross.

In the Stadttheater Bern and Deutsche Oper am Rhein Düsseldorf, she performed as Lucia Di Lammermoor[7] under the direction of Christof Loy.

[16] In the realm of recitals, Eteri Lamoris has performed Verdi's trio of "Ernani" from the Gala-concert in Barcelona at the Royal Palace Music Festival in Stockholm, and the Christmas in Vienna Gala Concert.

[20] Noteworthy performances include her appearances at the Teatro dell'Opera di Roma in the opera I Capuleti e I Montecchi[21] with Nello Santi.