Trading

Summary

 * The trading floor is unlocked at Area 53
 * Requires 1 portal (can be crafted after completing all expeditions)
 * When you activate the portal you can sell jewels for more coins inside the trading post.
 * Prices will change during the day (Trade Portal Graph). You have to open the portal to see how much it sells for.
 * Time of day is based on your phone's system clock, not any server's. Anything that manipulates your phone's clock will manipulate the portal, such as entering a different time zone, or manually editing your clock.
 * Upgrading takes 1 hour