Currently we are capped at 92 gems and once that is reached you can no longer obtain more. This limitation makes it so that we can no longer freely experiment with gem combination and choices, and its very limiting. It would be better if there wasn't a gem cap on number can obtain or at least expand the number of gems you can have to be much greater. As a result you could instead just make it so that there is only a cap on number of power you can equip, if maintaining player balance was a concern.
not to mention that gems are not account wide, making the grind to leveling an alt very tedious and time consuming. Not ideal for a game that is planned to be seasonal.