I've ordered two so far. The first one, I really loved, it was white, had marble gray specs and shiny. The second, which is the one, is almost completely gray, it is so dark, you don't see much white shine through, also a dull almost matte finish. I figured every marble piece would be unique, but not a day and night difference, literally. I wanted to return it but, I hate the hassle of returning things, I really needed to use it for a project. 

My advice is be cautious, it's like a surprise, you don't know what you'll get!
(I uploaded two pics, the first one is my first order, the second is my second order)