If we read the mural, from left to right, we can see a gem (Diamon?) who is using a king of artifact or some kind of power, a “special gem” to corrupt all the other gems (that explain the hands in despair…), in the center we can see Rose and others gems faiting this gem whit the artifact on her side or whit other artifact (and she is opening her eyes, like realising some king of “ultimate power”…) and in the last one we can see this gem “trapped”.
What intriges me is the “similar” of the gems with Garnet… is or was she part of some “special corps”?
in the lower, we can see different parts of the temple, witch can we interpreted as that temple was in fact some kind of “training” site.

If we read the mural, from left to right, we can see a gem (Diamon?) who is using a king of artifact or some kind of power, a “special gem” to corrupt all the other gems (that explain the hands in despair…), in the center we can see Rose and others gems faiting this gem whit the artifact on her side or whit other artifact (and she is opening her eyes, like realising some king of “ultimate power”…) and in the last one we can see this gem “trapped”.
What intriges me is the “similar” of the gems with Garnet… is or was she part of some “special corps”?
in the lower, we can see different parts of the temple, witch can we interpreted as that temple was in fact some kind of “training” site.