That's a shame, especially when this is not a small investment. But unless it bothers you tremendously, I would keep the purse if you like the color and the soft lambskin leather since (1) the staining will be inevitable with light colors and (2) the stain around the ring probably won't be easily noticed by others due to its location. I'm not sure if there are many differences between the SoHo and the 57th St. boutiques. They seem to carry pretty much the same products/colors. (I recently checked 57th St. boutique for Coffer and they only had a few colors in lambskin leather.)