Giorgio Armani #701 Flash Lip Lacquer ($29.00 for 0.22 fl. oz.) is a medium-dark bluish-gray base with multi-colored shimmer and pearl (predominantly aqua, blue, and violet). On lips, this translates into a smoky, plummy purple tint to the lip color, plus an array of violet and blue shimmer. MAC Karin is less gray, less multi-color in shimmer. MAC Boys Go Crazy is purpler. Giorgio Armani #604 has a similar tint to lips but no shimmer. See comparison swatches.