Place all the juices (except the ginger juice), pomegranate molasses, sliced clementines and whole spices into a medium saucepan and bring to a simmer over a medium heat. Turn down to low and steep for 20 minutes.
1 cup pomegranate juice, 1 cup red grape juice, 1 ½ cups cranberry juice, 2 teaspoon pomegranate molasses, 2 clementines, 1 long cinnamon stick, 3 star anise, 6 cloves, ⅛ teaspoon nutmeg