Mercury - Quicksilver Black Diamond 3-Blade Aluminum Propeller 9.5" Diameter x 11" Pitch Right-Hand Rotation 3-Blade Aluminum Phantom Black Finish QA2196R. Overview. There's something about a smooth, steady run across open water that just feels right - that's what you get with the Quicksilver Black Diamond 3-Blade Aluminum Propeller. It's not flashy or overhyped, just solid, reliable performance that makes your time on the water easier and more enjoyable. Whether you're fishing a quiet cove or c