Preheat oven to 400°. Line a rimmed baking sheet with parchment paper.
In a large bowl, whisk together flour, sugar, baking powder, orange zest, salt, cardamom, and cinnamon. Using a pastry blender or 2 forks, cut in butter until mixture resembles coarse crumbs. Add pecans, stirring well. Gradually add ¾ cup cream, stirring well with a fork. Add pear, stirring until combined. Add 3 tablespoons cream, 1 tablespoon at a time, stirring just until dry ingredients are moistened. Working gently, bring mixture together with hands until a dough forms.
Turn out dough onto a lightly floured surface, and gently knead 4 to 5 times. Using a rolling pin, roll out dough to a 1-inch thickness. Using a floured 2¼-inch round cutter, cut 9 scones from dough, rerolling scraps once. Place scones 2 inches apart on prepared baking sheet. Brush tops of scones with remaining 1 tablespoon cream. Garnish with sparkling sugar, if desired.
Bake until scones are golden brown and a wooden pick inserted in centers comes out clean, 15 to 20 minutes. Serve warm.
Recipe by TeaTime Magazine at https://teatimemagazine.com/orange-pecan-pear-scones/