Prada PR 51OS GAQ1A1 Shiny Black and Silver Sunglasses Grey Gradient Lens An iconic Prada shiny black Fashion Sunglasses with Grey gradient Lens that never go out of style. Get the look you strive for with Prada PR 51OS GAQ1A1 Sunglasses. The Prada 51OS is a new retro style with matte black metal semi rimless frame. The PR 51OS is a fashionable ultra cool style from the Prada fashion house. 58mm