Mix the sugar, cornstarch and water in a saucepan. Bring to a quick boil. Cook until thickened and clear.
Add the gelatin. Remove from heat and cool slightly. Add peaches and pour into pie shell. Refrigerate until cooled and set. Garnish with whipped cream, if desired.
Notes
Other fresh fruit or berries with compatible flavored gelatin may be substituted for the peaches and orange gelatin as above.