Preheat the oven to 400°F. Line a baking sheet with silicone or parchment.
In a large bowl, rub the sugar and orange zest together until fragrant. Whisk in the flour, baking powder, and salt.
Grate the cold butter into the flour mixture and toss to combine. In a small bowl or measuring cup, whisk together the half and half, eggs, and orange extract.
Pour the wet ingredients into the dry ingredients, and mix until the dough just starts to come together. Gently fold in the cranberries, being careful not to crush them.
Pat the dough out into an 8-inch square, being careful not to overwork it.
Cut 9 circles out of the dough using a biscuit cutter, and place on the prepared baking sheet.
Brush with the cream and sprinkle with the sparkling sugar. Bake 18-20 minutes, or until golden brown.
To make the glaze, whisk the orange juice and powdered sugar together. Add the half and half as needed to make a glaze that's easy to drizzle, but not too runny. Drizzle the glaze over the scones.