[Suggestion] Teleporting jawels

Pairs of gems that do not have statistics on their own, but when placed in selected slots of the passive tree, combine them so that you can continue your tree from a different place.

This would allow you to create completely new builds at the expense of statistics, even without the middle of the tree. For example, a warrior with curses.

And how do you unlock these jewel slots? Or you just unlock the first and the second could be placed to any jewel slot in the tree? That sounds dangerously op.