Gem

Gems can sometimes be brought from markets around the ocean, and then sold to the appropriate market (the market at the capital of the archipelago that's named the same as the gem) for 1000 poe. The cost to purchase a gem depends on the distance from the market it can be sold at. Each time, a different gem type will spawn all accross the ocean. A gem dissapears from the ships hold if left unattended for a while. This feature only exists in the Midnight Ocean.