Pre-heat the grill about an hour before you’re planning on eating. To tell if your grill is at the right temperature, hold your hand right over it. If you you can keep it there for five seconds, it’s not hot enough. If you can’t hold it there for even a second, it's too hot.
When the grill is hot, lightly pat the lamb chops with paper towels, just to remove any excess marinade. Liberally season both sides of the chops with salt and pepper. Arrange the chops over the grill. Grill until well-browned on the first side, about 4 minutes. Flip the chops over and grill to desired doneness, about 2-3 more minutes for rare (120°F ), 4-6 minutes for medium (130°F ), and 8-10 minutes for well-done (150°F).
Remove from the grill, and rest about 10 minutes, covered with a foil tent. Squeeze the juice from the remaining lemon over the lamb chops. Serve.