This app was removed from the App Store.
Gem Hunter for the iPhone
iOS iPhone Games
In this game, you need to tap on each gem before the safety halo goes away. There are blades that spin around and if they hit a gem without a safety halo, it will explode removing one of your lives. The more gems you collect the more points you will score. More points will mean higher levels, more blades, and more gems.
Updates to support IOS 6