Preheat the oven to 400 degrees F and line a large baking sheet with parchment paper (or spray pan with non-stick spray.)
In a large bowl, whisk together the flour, baking powder, salt, sugar and cinnamon.
Add the cold vegan butter, and use a pastry cutter or your hands to work the butter into the dry ingredients. It should resemble coarse crumbs.
Pour in the milk and vanilla, and stir until just combined. It will still be a shaggy dough at this point. Fold in the diced peaches and candied ginger, if using, gently. The dough will become a bit wet; that's okay. Use your hands if needed to get the peaches and ginger incorporated the best you can.
On a lightly floured surface, knead the dough a few times until it comes together, gently. Flatten the dough with your hands (lightly flour your hands if sticky). Flatten it into a circle, about 1 inch thick.
Using a pizza cutter or large knife, cut it like you would a pizza, into 8 pieces.
Using a spatula, place the scones onto the prepared baking sheet and bake for 20-24 minutes, until lightly golden brown on top. Transfer to a wire cooling rack.
While the scones are cooling, make the glaze. In a small bowl, whisk together the powdered sugar, soy milk and vanilla until smooth.
Once the scones have cooled, drizzle with the glaze and serve. Enjoy!