Cobalt Jelly is a cobalt Yves Klein blue nail polish with a shiny, transparent finish. Our jelly polishes feature a sheer, buildable formula giving the color depth and allowing your natural nail line to peek through. This cobalt blue jelly is smooth and sheer like sea glass from a shipwreck. Shards of broken glass go with the flow and gently tumble through the ocean. They become rounded and gem-like by the time a lucky beachcomber finds them washed up on the sand. Blend this color with other sea glass jellies and finish with a matte top coat for a frosted look.