I figured I might as well include the four I already owned in the swatches, for the sake of comparison and showing my complete collection. From left to right, we have: RD203 (Portrait), RD305 (Nymph), RD309 (Carnelian), RD311 (Rubelite), RS312 (Sunstone), RS404 (Disco), and RD607 (Nocturne). Carnelian, Rubelite, and Sunstone all have fine shimmer - not nearly enough to give a frosted effect, just enough for a little extra shine - and the other four shades do not.
I purchased Rubelite, Carnelian, and Sunstone from StrawberryNet.com (434B6417CA, which gets you $10 off a $25 purchase and free shipping plus a free clear Calvin Klein lip gloss - expires on 1/31/13). I still need Amethyst, though!