The stargem is a gem that can be found in Candy/Fairy island. The gem is in a form of a star and has a distinctive color as it the only purple gem in the game as of now. Though other than Candy/Fairy island there is a few amounts of nodes that can be found on the mainland. Selling a single stargem will give you $2,500 gold coins each.
2018-06-03 (16)

Stargem node


stargem in inventory