Hopefully this will be semi helpful; I'm about to go to bed so it's just on a bottle cap. It's a teal blue/green--similar to the dark green they put out before, but more emerald in tone, with a little yellow/green iridescent shimmer that looks a little more noticeable in the photo than in real life.
On second thought, I think 4/6 of the colors in this RCM collection had a goldish or irridescent shimmer, and I think the Gelish fall shades are all cremes. But these colors are similar in tone--greyed out or dark colors.
I found a post on it here;
http://daydreamingbeauty.com/tag/postcards-from-milan/ But haven't seen any swatches of other colors yet.