Place lamb cubes in a glass dish or resealable plastic bag.
Combine marinade ingredients and pour over lamb, making sure it is well coated. Seal bag and place in the refrigerator for 6 hours.
Preheat grill for medium heat.
Remove lamb from bag and thread the meat onto skewers, about 6-7 pieces per skewer.
Place kebabs on to a lightly oiled grill grate 10-11 minutes, turning once or twice. When the lamb has reached the desired doneness, remove from the grill and serve.