Diana was born in the family of Finnish researcher Reijo Mononen and Russian-Finnish artist Elena Ringo. Her great-grandfathers are inventor Josef Ringo[4] and mathematician Sergey Nikolsky.[5]
Her director debut is dystopian feature film drama Quarantine (2021)[6] which was shortlisted for the 2022 Golden Globes as a foreign entry.[7][8] She was also composer of the film and for the film's score she wrote 26 original tracks.
In November 2022 it was announced that her feature film based on George Orwell's dystopian novel Nineteen Eighty-Four would be released in 2023.[9][10][11] Her film 1984 was released on 15 November 2023.
Her music for the film Million Loves in Me by Sampson Yuen won the award for the Best Original Score at the LAFA Awards in 2020.[13] She also composed the score for the Santa Monica College short film Hinge by Lisa Mayo in 2019.
Diana grew up in Helsinki and was interested in music since early childhood. At the age of five, pianist Dmitry Soloviev, discovered that Diana has perfect pitch. She started to study piano and Soloviev became her first music teacher.[1][14]
^"VIFF 2019 Winners". Vienna Independent Film Festival. Archived from the original on 11 June 2022. Retrieved 29 August 2022.{{cite web}}: CS1 maint: bot: original URL status unknown (link)