Jewel Fish

The  is a quest item that is needed for the Angler. It is found by fishing in the Underground.

Quest Log
Oooooohhh, I´m going to be SO rich! Deep in the caverns, there is a fish made out of gemstones! Don´t ask me how, I don´t know, all I know is that this fish is totally awesome and you´re going to catch it for me!