Chantecaille is a lovely luxury brand, but with $90 compacts, it's rare that I actually get to use its products. But I'm willing to guess that you're as excited as I am to find two items for half price.
Poudre Delicate (originally $55, now $27.50) is a sheer powder with very fine shimmer on top. You can use it as a finishing powder, and it'll help reflect light off of your skin. Then, these butterfly eye shadows (originally $39, now $19.50 each) are just gorgeous. They use two shades throughout the compact, with a bit more shadow colors used in the butterfly detail. Normally, this would be something I'd just gaze at lovingly, but now that it's on sale, I may just have an excuse — er, a reason—to pick one up.