1. Heat a small skillet over medium heat. Add coriander seeds and cumin seeds to pan; cook 2 minutes or until seeds are golden brown and fragrant, stirring frequently. Place coriander mixture in a spice or coffee grinder; pulse until coarsely ground. Add sugar and paprika; pulse to blend.
2. Trim fat and rind from the ham. Score a diamond pattern across the top of the ham; rub spice mixture evenly over the ham.
3. Preheat oven to 350°.
4. Combine honey and cider vinegar. Place the ham, bone end up, in a roasting pan coated with cooking spray. Bake at 350° for 30 minutes. Baste with honey mixture. Bake the ham an additional 1 hour or until a thermometer registers 140°. Place the ham on serving platter; cover with foil. Let stand 15 minutes before slicing.