01 - Line a 9-inch springform pan bottom with parchment paper.
02 - Mix graham cracker crumbs, melted butter, and sugar in a medium bowl until evenly combined. Press mixture firmly into the pan bottom. Refrigerate while preparing filling.
03 - Sprinkle powdered gelatin over 3 tablespoons cold water in a small bowl. Let stand for 5 minutes to bloom.
04 - Beat cream cheese in a large bowl until smooth. Add Greek yogurt, powdered sugar, vanilla, and lemon juice. Beat until creamy and well incorporated.
05 - Microwave bloomed gelatin for 15 seconds until dissolved. Cool slightly, then whisk into the cheesecake mixture.
06 - Pour filling over the prepared crust. Smooth top with a spatula. Refrigerate for 2 hours until set.
07 - Dissolve fruit-flavored gelatin in 1 cup boiling water, stirring well. Add 1/2 cup cold water and mix. Cool to room temperature without letting it set.
08 - Gently pour cooled jello over the set cheesecake layer. Refrigerate for at least 2 more hours until jello is firm.
09 - Run a thin knife around the edge before releasing the springform. Garnish with fresh berries or fruit slices if desired. Slice and serve chilled.