Amethyst is AMAZING!!! It's a beautiful pinky-lavender holographic color. These hollo's are killing me right now!
Jewel is a great berry color, jammed packed with fine pink glitter/shimmer-in the bottle. On the nail, it is more of a sheer raisony base with pinkish copper glitter/shimmer. The OPI website describes it as "A spectacular sparkle of Cabernet". It was very sheer and I would recommend 3 coats. This is 2 coats with a base and top coat. It is pretty, I just would descibe it as more of a copper than cabernet.
Mystery is the new fall 2009 DS color. It is a very dark violet, full of purple glitter/shimmer.