Mmmm, this Inception marble from Scoz has the best colors in it, the whole spectrum of colors fading from one to the next. I love this one, it is oh so beautiful, with a perfectly placed and sized air trap in there, capturing all of the detail SO perfectly in teensy-tiny miniature. The physics of the optics involved in something like this are such a blast to think about! Great sparkly backside on this one as well - this is overall one of the best Inception marbles I've ever seen!