Preheat a large skillet over medium-high heat. While the pan is heating up, mince garlic cloves and grate lemon zest.
Melt 2 tablespoons of butter in the hot skillet for about one minute until it starts to brown slightly at its edges. Add minced garlic and cook them till they are fragrant (about a minute). Sprinkle with sea salt, mix gently then remove from heat.
Under high pressure while maintaining constant stirring, add the scallops into skillet one by one to prevent crowding. Cook each side for 1-2 minutes till they turn opaque and develop golden brown edges. Remove them using tongs when done (they should be seared on both sides without being fully cooked inside). Set aside.
In the same pan, add remaining butter along with lemon juice, zest, and parsley while keeping heat at medium-high till it comes to a simmer. Drizzle this sauce over each scallop just before serving.