BIO
Diamond made her professional debut in the musical television special of Jesus Christ Superstar Live in Concert on NBC as a featured member of the ensemble. Diamond was also the understudy for Sara Bareilles' character, Mary Magdalene.
Diamond originated the role of Babe, the youngest version of Cher around the age of 7–19 in The Cher Show. The Cher Show opened its world premiere at the Oriental Theatre on June 28, 2018. Diamond starred alongside Jarrod Spector, Teal Wicks, and Stephanie J. Block. Performances ended in Chicago on July 14, 2018. The production was then transferred to Broadway, with previews beginning on November 1, 2018, and opening night on December 3, 2018, at the Neil Simon Theatre. Diamond appears on the musical cast album. On June 9, 2019, Diamond was named a 2019 Theatre World Awards honoree for her role as Babe in The Cher Show. Diamond was nominated for Best Breakout Broadway Performance of the Decade at the Broadway World Theatre Fans' Choice Award for her performance in The Cher Show.
In 2019, Diamond originated the roles of Lindy and Dorothy in the world premiere of Ethan Coen's A Play Is a Poem at Los Angeles' Mark Taper Forum. The play ran from September 11 to October 19, 2020, and was scheduled to begin performances Off-Broadway at the Atlantic Theater Company's Atlantic Stage 2 in New York City beginning May 14, 2020, but was postponed due to the COVID-19 Pandemic.
Diamond originated the roles of Young Tori and Amelia in Williamstown Theatre Festival's world premiere production of Row which opened on July 17, 2021. The musical, inspired by the book A Pearl In The Storm by Tori Murden McClure, follows an individual who aims to be the first woman to row solo across The Atlantic.
On May 17, 2022, it was announced that Diamond would play Lucille Frank opposite Ben Platt as Leo Frank in New York City Center's production of Parade. She received this role for the gala production of its 2022/2023 season after playing the role in a workshop conducted by Roundabout Theatre Company in 2018. Diamond went on to play the role in the 2023 Broadway transfer of the production, earning her a Tony Award nomination. Most recently, she appeared as Fritz in Stephen Sondheim's final musical Here We Are Off-Broadway at The Shed.
Her film and television credits include Sister Mary Duvall in "American Horror Story: Grotesquerie," Peggy in the Netfilx film adaptation of tick, Tick... BOOM, directed by Lin-Manuel Miranda, as well as roles in "The Guilded Age," "Up Here," and "Elsbeth."