GT01, aka Mercury has a dark gray base with small round glitter in silver, brown, and blue. Mercury is the one polish I didn't "need" of the collection, and boy was I wrong. This is SO stunning. It was love at first stroke.
Formula is great and highly opaque. The photos below show two coats of GT01 and a coat of Seche Vite. (All of the reviews I read stated this was a top coat eater, but I had no problem with only 1 coat. I didn't find these to be any worse than any other glitter, IMO). Photos with and without flash.
What do you ladies think?