Mercury - Quicksilver Black Diamond 3-Blade Aluminum Propeller 10.3" Diameter x 14" Pitch Right-Hand Rotation 3-Blade Aluminum Phantom Black Finish QA2082X. Overview. There's nothing quite like the feeling of your boat reacting just the way you want it to - steady on takeoff, smooth through the turns, and calm when you ease back on the throttle. That's the kind of performance you'll feel with the Quicksilver Black Diamond 3-Blade Aluminum Propeller. It's built for boaters who appreciate reliabil