dude, the gem has a purpose. eventually after clicking it it will say 'perfict gem activated' instead of 'gem activated' once this happens you then go to the first part of the first act and there is a gem shrine. open it get some perfect gems

🙂

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"Well you know that it's a fool who plays it cool by making his world a little colder."
"AARGH! MY SPINAL ERECTORS!!!!"