The engagement ring has always been a statement. Tiffany & Co.’s new Love & Celebration campaign simply changes who — or what — it’s a statement about. Anchoring the campaign is a cinematic film starring Mikey Madison, an Academy Award-winning actress who has become one of Hollywood’s most compelling faces. The film takes the familiar “he loves me, he loves me not” ritual and quietly inverts it — Madison wearing the new Sixteen Stone by Tiffany solitaire…

