Marinate the Scallops: In a bowl, combine the scallops with minced garlic, chopped basil, salt, and black pepper. Toss to coat evenly and marinate for 10 minutes. Before cooking, remove most of the basil leaves from the scallops.
Preheat the Pan: Heat olive oil in a large non-stick skillet over medium-high heat until shimmering, but not smoking.
Cook the Scallops: Add the scallops to the pan, making sure not to overcrowd them. Sear for about 2-3 minutes on each side until they form a golden-brown crust and are opaque in the center. Remove the scallops from the pan and set aside.
Prepare the Sauce: In the same pan, add any remaining minced garlic and sauté for about 30 seconds until fragrant. Add the lemon juice and zest, stirring to combine. Return the scallops to the pan and toss to coat them in the sauce.
Add Basil: Sprinkle the chopped basil over the scallops and toss gently to mix.
Serve: Serve immediately, garnished with additional lemon zest and fresh basil if desired.