Gems (Blades)

The Gem is the penultimain currency in. It's a currency can be obtained normally while also being able to be converted from another currency from one of the Godhead's other mindservers- or his real world. This is not known to the Denizens of Tamreal.

In Game
It would appear as if they can be percieved by the Denizens of Nirn to the extant of having value, but they have no clue of their connection to this other currency. They have value equal to gold, items, and chests, as well as the magical ability to bend (speed up) time. It is possible that the correct interpretation is that they are not perceived in the previous way but as a magical form of power, perhaps felt, than can be used up to the ends of aquring gold, items, and chests, as well as bending time.

Acquisition
Gems Can be found in chests, looted in drops, gifted as daily rewards, rewarded for leveling up, and compleating quests or jobs.

Acquiring Gems
Gems can also be purchased by the character's higher self. Of course, the character is unawhere and probably perceives it as their higher self or a diety popping in gems or suddenly gifting them things- or maybe it is seen just as simply as luck.