In 2-quart saucepan, combine sugar and cornstarch. Mix well. Gradually stir in water. Cook and stir over medium heat until clear, about 10 minutes. Add 1 1/2 cups of the blueberries. Reduce heat to low; cover. Cook until berries come back to a boil, about 10 minutes. Add cinnamon, lemon juice and lemon peel. Stir. Add remaining blueberries. Stir. Pour into cooled, baked pie shell.