Gems are an edition in Rolling Sky. They can be collected by players optionally. Usually, there will be twenty in each level, but if there are Crowns available in that level, the level willonly have 10 gems to be collected.
Obtained Gem
Much like Balls, the color of the gem changes depending on the theme the level is on. When gems are collected a '+1' will appear, where the gem was, as well as some white particles that are tinted with the theme's color.