I have two great colors from the OPI Designer Series. Sapphire and Extravagance are holographic beauties.
Sapphire is a pale blue holographic color. I found it to be on the sheer side. I was hoping this color would be a little more blue. Once it's on, it seems more silver. It is very pretty, just not what I expected. You can see the blue in the bottle, and not so much on my nails.
Extravagance is beautiful, rich, berry goodness! What a beautiful color.