From the 'Housewives of Tudor England' collection, Catherine is a deep, greyed-purple with pink and blue micro-flakes suspended in it. I love this colour; it's unusual but elegant. Anne is still my favourite of the bunch though (she's also my favourite of the queens).
The picture is with two coats applied. Again, thanks to the lovely Amy of cafemakeup.com for helping me to get hold of these polishes.