Whisk together first 7 ingredients in a large bowl. Add scallops and toss well to coat. Cover and refrigerate at least 1 hour. Meanwhile, soak bamboo skewers in water to cover for 30 minutes. Preheat charbroiler to medium-high heat. Thread scallops on skewers. Broil scallops just until cooked through and scallops are firm, about 3 minutes per side; place on serving platter. Garnish with with cilantro leaves and lemon wedges.