https://www.whisqy.com/blog/en/150-gran ... naire.html
Grand Marnier Yellow Label, or Cordon Jaune: Yellow Label Grand Marnier is considered the lowest quality and is also the lightest color. It is not cognac, but made from corn-distilled alcohol. Therefore, it is often mixed in cocktails or used to flambé it, like crêpes.
Grand Marnier Red Label or Cordon Rouge: This is the standard grade, which is commonly called "Grand Marnier".