I took some pics of the Rouge Coco Shine and Vernis. These are my first swatches other than nails, so please be kind! Let me know if there are too many photos, I just wanted to provide enough pics to be helpful.
Rouge Coco Shine - Brillant. The face swatches on the left are bare lips.
Brillant compared with #41 - Canotier, the most comparable RCS. They are very different in color, obviously. The finish is also different: Canotier (L) is more pearly (glowy, not frosty, though) and Brillant is more shimmery.
Le Vernis - Gold Fingers.
Comparisons L-R with #440 - Gold Lamé (more pink), Gold Fiction (true gold), Gold Fingers (more yellow) and #450 - Illusion d'Or (top coat, similar in color to GF). It isn't at all similar to the other Chanel golds I own.
The finish is very similar to Graphite. The closest non-Chanel polish I found in my stash (although most of my polish is boxed from moving) is OPI Dazzled by Gold (R). It is darker, more of an old gold, with larger particles, and with silver particles interspersed.
I hope these pics are helpful. I'm very happy with my purchases, although I'm kind of wobbling on whether or not to go back for the Lucky Stripes palette.