Reserve 1 tablespoon of the Marinade. Place pork in a large resealable plastic bag or glass dish. Add remaining marinade; turn to coat well. Mix reserved Marinade with preserves in a small bowl; set aside.
Refrigerate 30 minutes or longer for extra flavor. Remove pork from Marinade. Discard any remaining Marinade.
Grill pork chops over medium-high heat 6 to 7 minutes per side or until desired doneness, brushing with marinade mixture during last few minutes of grilling. Serve with grilled peach halves, if desired.