Frobisher Gem

The Frobisher Gem belonged to the Frobisher Smythes. They placed the gem in the Frobisher Shield.

History
When the Frobisher shield belonged to the school, John Clarke stole it. He asked Jerome to find it for him. Jasper later stole the gem for The Collector.

Use Of The Gem
The Frobisher gem is used to make the replica mask, the real one.