In the Rough stamp

The In the Rough stamp is a hard difficulty stamp in Club Penguin. All penguins can earn this stamp by finding a rare treasure - the Emerald in a game of Treasure Hunt.

Trivia

 * During the Christmas Parties, the emerald was replaced by an ornament. If you find an ornament, same as an emerald, you would receive a 100 coin bonus and this stamp (if you haven't received it before).