Talk:Lighthouse Gem Monster/@comment-26292998-20150708215008

In a new short, Pearl teaches Steven about Gems.

One line she says is "When a Gem is reduced to it's gem stone, it can be contained in a bubble or in an object keeping it from reforming"

As this Gem seems to be not corrupt, I feel that the lighthouse was the thing keeping it from reforming, now it's in a bubble.

My question is, who put it there?