China Glaze Want My Bawdy Nail Lacquer ($3.00 to $7.00 for 0.50 fl. oz.) is described as an “sexy sapphire blue.” It’s a blue-shimmered violet-blue with a metallic finish. Guerlain Riviera is more purple. SpaRitual Blue Moon is darker, less metallic. ORLY Lunar Eclipse is similar in color but slightly more purple. MAC Hyper is bluer. Le Metier de Beaute Noble Passion is similar.