In a bowl, mix graham cracker crumbs, granulated sugar, and melted butter until combined. Press firmly into a 9-inch tart pan and refrigerate for 30 minutes.
In a large bowl, beat cream cheese, powdered sugar, and vanilla until smooth. In another bowl, whip heavy cream until stiff peaks form, then fold into cream cheese mixture.
Spread the cream cheese filling over the chilled crust. Arrange berries on top. If desired, warm apricot jam and brush lightly over berries for a glossy finish. Chill for at least 2 hours before serving.