In a medium bowl, combine graham cracker crumbs with melted unsalted butter until well mixed. Press this mixture firmly into the bottom of a 9-inch springform pan using the back of a measuring cup or your hands, creating an even layer. Place the crust in the refrigerator while you prepare the filling to help it set.

Take the cream cheese out of the refrigerator and allow it to soften at room temperature for about 30 minutes. Once it's soft, transfer it to a large mixing bowl and beat with an electric mixer on medium speed until the consistency is smooth and creamy.

Gradually sift powdered sugar into the softened cream cheese while mixing on low speed. Continue to beat the mixture until the sugar is fully incorporated and the filling is smooth, which should take about 1-2 minutes.

Add heavy whipping cream, fresh orange juice, orange zest, and vanilla extract to the cream cheese mixture. Using an electric mixer, whip on high speed until the mixture becomes fluffy and holds soft peaks, about 2-3 minutes.

In a small bowl, sprinkle unflavored gelatin over cold water and let it sit for about 5 minutes until it blooms and softens. After blooming, gently heat the gelatin mixture in the microwave for 10-15 seconds, or until just melted.

Remove the melted gelatin from the microwave and let it cool slightly. Gradually stir the warm gelatin into the cheesecake filling mixture, ensuring it's fully incorporated without any lumps.

Take your prepared crust out of the refrigerator and pour the creamy filling over it. Use a spatula to spread the filling evenly across the top of the crust. Gently tap the pan on the counter to release any air bubbles.

Cover the springform pan with plastic wrap or aluminum foil and place it in the refrigerator for at least 4 hours, or preferably overnight.

Once fully chilled and set, carefully run a knife around the edges of the springform pan to loosen the cheesecake. Gently release the springform clasp and remove the sides of the pan.

Before serving, feel free to decorate your cheesecake with additional orange slices or a sprinkle of orange zest on top for an extra pop of color. Slice into wedges and enjoy!