If you only own one Chanel nail polish, it needs to be Rouge Noir.
This is one of my all time favourites nail polishes. I know, Chanel nail lacquers aren't the greatest, they chip very easily which is such a shame, definitely not what you'd expect from such a quality brand. You can find lots of dupes for this shade, cheaper and with better quality out there.
But every single autumn/winter I come back to this nail polish. I absolutely adore the colour of it, it's an absolute classic, so chic and timeless and it goes with absolutely everything. It layers on so well, the application is even and the finish is very glossy. This lasts two/ three days on me. So beautiful!