Mercury - Quicksilver Black Diamond 3-Blade Aluminum Propeller 14" Diameter x 13" Pitch Right-Hand Rotation 3 Blades Aluminum High-Gloss Black Finish QA2032X. Overview. There's a certain kind of satisfaction when your boat lifts onto plane effortlessly, the steering feels light, and the water breaks cleanly behind you. The Quicksilver Black Diamond 3-Blade Aluminum Propeller captures that feeling every time you throttle up. It's the kind of prop you can count on-steady, predictable, and built to