Stewart admitted to cheating on boyfriend Robert Pattinson with her Snow White and the Huntsman boss last month, prompting Sanders to issue his own statement saying that he was "utterly distraught" about hurting his family and wife Liberty Ross.
© PA Images / Ian West/PA Wire
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Sanders was later seen with his wedding ring still on, seemingly confirming reports that Ross had forgiven his infidelity.
However, the actress - who starred in Snow White and the Huntsman as Stewart's mother - was photographed by TMZ in Los Angeles yesterday (August 6) without her own wedding band.
It was previously claimed that Sanders and Ross, who have two children together, have not seen each other since news of the fling broke.
Stewart and Pattinson, meanwhile, are both believed to have left the California home they share, though there has been no confirmation on the status of their relationship.
Watch a clip from Snow White and the Huntsman below:
