Here's a pic of all the colors I have that I think were sold as separates:

Close-up of Coral and Peach:

Pistachio and Army Green:

Bright Pink and Light Pink:

Gray and White:

Navy Blue and Red:

Camel and Dark Brown:

Yellow and Peacock Blue:

Mint Green and Apple Green, plus a mystery set that I bought secondhand in a pale green color with a white shell. Not sure if it's another color variation or maybe from one of RC's sample sales.

According to my notes there is a turquoise variant out there that I don't own (see NRFB pic below). The cardigan does fasten with the gold beads passing through tiny holes. Here's an example of one buttoned up (no easy feat!), then an example of the shell by itself and finally a pic showing the spiral pin that was sometimes included.

Finally, the above were sweater sets that were sold separately. RC did also design several complete fashions that included cardigan sets and I've add the three I own to the front of this pic:

The black set was sold with the fashion called Polkadots 'N Pearls. The oatmeal set came with an early unnamed Yahoo Group exclusive fashion. The lavender set was part of the Sweater Chic fashion.

To show a sweater set NRFB I have a pic of the turquoise variation:

Finally, here is RC's promo shot showing a nice selection of sweaters:

Next up is the v-neck sweater dresses which also come in a variety of colors so it may take an extra week or two to get all the re-dressing done but I hope to showcase them soon!