Deborah Lippmann Moon Rendezvous ($17 at Neimans and Nordstrom) is part of the Romantic Rapture Collection for spring 2013. It's a beautiful sparkling steel blue with a slight transparent finish. The shimmer is quite complex in the bottle. There are flashes of teal, steel gray, blue and pearl. On the nails it applies more like a soft pearly baby blue - more so than what you see in the bottle. It's not quite a jelly-finish polish, but it has a soft transparent quality. I applied with two coats, but probably could have used a third for full coverage.
Swatched, here you see more of a powder baby blue shimmer:
Here the pearly frost is more visible:
Comparisons: Deborah Lippmann's Moon Rendezvous is similar to OPI's Moonraker. The difference is Deborah Lippmann's has a more sophisticated complex shimmer while the OPI has more of a frost finish (with a bit of visible streaking due to the metallic quality). The OPI is also darker by a few shades and a bit more dramatic. NARS Full Metal Jacket is quite a few shades darker and deeper. Chanel Skyline is more of a sky blue. When Skyline is side-by-side to Moon Rendezvous you can see a bit of the teal undertone.
Bottom line - perfection.