Bobbi Brown Chrome is a very warm-toned, light-medium glitter with a metallic finish. It is a limited edition nail lacquer that retails for $15.00 and contains 0.37 oz.
Chrome Nail Polish ($15.00 for 0.37 fl. oz.) is described as a "silvery gold glitter." It's a holographic, silver and gold glittered polish with a sheer, golden base. It's semi-opaque after two coats of polish, and it can also be used as a glittery top coat. I tried it over black, and it was like a golden, holographic explosion. I wish there was something on Bobbi Brown's website that indicated this was more of a top coat or a sheerer product, but there isn't. This shade was actually from the holiday collection, Old Hollywood, which I bought because I couldn't resist, and it seemed like the time to review it had passed... but then with Bronze, I felt like I needed to show Chrome with it--and it is still available, so there you go. Cult Nails Blaze (DC, $12.00) is the most similar polish that I have, but it isn't holographic. See comparison swatches.