He played college football at Iowa, and was selected by the Baltimore Ravens in the seventh round of the 2020 NFL draft.

[2][3] Stone played in all 13 of Iowa's games as a true freshman, appearing mostly on special teams and finishing the season with 17 tackles and one interception.

[4] He became a starter during his sophomore year, recording 39 tackles with a forced fumble, three passes broken up and four interceptions, one of which he returned for a touchdown and was named honorable mention All-Big Ten Conference.

[7][8] Following the end of the season Stone declared to enter the 2020 NFL draft, forgoing his final year of NCAA eligibility.

[23][24] Due to numerous injuries to the Ravens' defense, Stone saw increased playing time as the season progressed.

[28] Stone was named the starting free safety for the 2022 Week 6 game against the New York Giants after Marcus Williams went on injured reserve for a wrist injury.