Preheat oven to 325 F. Place ham, cut side down, on rack in a roasting pan. Bake about 30 minutes or until internal temperature reaches 90 F.
In a small saucepan, simmer jelly, preserves, vinegar, mustard, brown sugar & sage stirring occasionally. Remove from heat.
Remove ham from oven. With a sharp knife, lightly score outside of ham, making parallel 1/4″ deep cuts in crosshatch pattern. Brush ham with some of the glaze & return ham to oven. Bake until internal temperature reaches 130 F., brushing ham with glaze during baking.
Carefully place ham on a serving platter. Cover loosely with foil & let stand 10 minutes before serving. Internal temperature will rise to 140 F. upon standing.