Chanel Infidèle Le Vernis is a beautiful mauve pink rose. It's my favorite of the three Fashion's Night Out polishes. The color is richly pigmented. I love that it seems to bring the fingers to life. It's an intense pink but still demure. I like that it's different from many of the bright pinks Chanel likes to create for the nails (ala Riviera, Rose Insolent, Rose Exhuberant etc.). It's listed as limited-edition and retails for $26. I think it's a must-have.
Here it is swatched on me with two coats:
Close up of the nail wheel:
Some nail swatches on the fingers, on the nail wheel (two posts before) Infidèle looks like a close dupe Rose Confidentiel. On the fingers side by side, you can see the difference. Rose Confidentiel is more beigey and a more peachy pink while Infidèle is cooler-toned and more mauve.