Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
In a large bowl, whisk together the all-purpose flour, granulated sugar, baking powder, and salt until well combined.
Add the cold, cubed butter to the flour mixture. Using a pastry cutter or your fingers, cut the butter into the flour until the mixture resembles coarse crumbs.
Gently fold in the fresh raspberries and lemon zest, being careful not to crush the berries.
In a separate bowl, whisk together the heavy cream, egg, vanilla extract, and fresh lemon juice until combined.
Pour the wet ingredients into the dry ingredients and mix just until combined; do not overmix. The dough will be slightly sticky.
Turn the dough out onto a lightly floured surface, and gently knead it a few times until it comes together.
Pat the dough into a circle about 1-inch thick. Cut the circle into wedges (like a pizza) or use a round cutter to create individual scones.
Transfer the scones to the prepared baking sheet and brush the tops with a bit of cream for a golden finish.
Bake in the preheated oven for 15-20 minutes, or until the scones are golden brown.
Let the scones cool on the baking sheet for about 5 minutes before transferring them to a wire rack to cool completely.
Notes
Serve warm, dusted with powdered sugar, and with whipped cream or lemon curd.