While they are yet to confirm the news themselves, a close source told Us Weekly that not only have the pair been living separately since last year, but that Agron was already dating again.
The couple are still following each other on Instagram, which points to the possibility that the breakup was amicable. However, a statement sharing the official news of their divorce is still forthcoming.
The pair married in 2016 at a stunning private ceremony at the Beldi Country Club in Morocco, following a whirlwind romance.
Carey Mulligan and her Mumford & Sons frontman husband Marcus Mumford were in attendance.
Dianna wore a straight-off-the-runway embellished Valentino gown and a gold headpiece, looking every bit the modern bohemian bride.
At the time, a source told Us Weekly that Marshall was "the nicest guy" who treated Agron like "a princess." The source also revealed that Marshall was "so thoughtful and flies her family everywhere they go and to see them whenever she wants."
No further details have been released.
