Cut bass into 4 serving pieces. In a coffee grinder, coarsely grind up coriander, mustard, cumin and pepper. Coat fish with mixture and garlic. Drizzle on olive oil and set in refrigerator for at least 4 hours, turning every hour or so. Preheat oven to 400 degrees. Over high heat, saute fish (in ovenproof pan) to sear. Pop into oven for 5 minutes to cook. Remove fish from pan and add lemon juice. Cook down on stove until syrupy. Serve over fish.