I'm not usually a big one for layering, i guess I'm just kinda lazy, but i do love how this combo turned out! China Glaze Ruby Pumps over China Glaze Branding Iron (from the Rodeo Diva collection for fall 2008). Both polishes should be readily available via etailers, and many retail establishments probably have them as well. I used two coats Branding Iron (although i think one would work just as well, it is very pigmented) and one coat Ruby Pumps, then Seche Vite top coat.
I think the darker under-layer really gives the entire mani a jewel like glow. Sparkly and vampy at the same time!