[3] She was part of the silver medal team at the 2021 European Ladies' Team Championship, together with Linn Grant, Sara Kjellker, Ingrid Lindblad, Maja Stark and Beatrice Wallin, where she finished her match against Emily Toy all square as Sweden fell to England in the final.

Lignell graduated high school in 2019 and accepted an athletic scholarship to the University of Mississippi, where she played with the Ole Miss Rebels women's golf team between 2019 and 2024.

[7] She was initially selected for the international side at the 2023 Arnold Palmer Cup,[8] and reached a career-best 18th on the World Amateur Golf Ranking.

[9] Lignell turned professional after she graduated in 2024, and her first start was at the Dormy Open Helsingborg on the Ladies European Tour.

She was runner-up at the MoreGolf Mastercard Open, three strokes behind compatriot Kajsa Arwefjäll, after holding the outright lead going into the final day and setting a new course record of 64 (−8) in the first round.