I love Illamasqua. It's a daring brand that has some innovative colours and products. Plus the quality is just stunning.
I bought this 'speckled egg' nail polish shade Mottle (they have other shades as well).
You need two layers and I would advise using a topcoat (I always use Seche Vite anyway) but the result is simply lovely. Very spring-like and fresh.
It's not cheap, I think it's the most expensive one I own, but hell, I love it.
Illamasqua is available at asos.com
Animal testing info:
Illamasqua doesn't test on animals and even their make up brushes are made of synthetic hair.