Is Refuge of the Lost worth running for gems?

The reported results are three Royal gems without the modifier, and ten gems with a Gem modifier, including one Grand gem. The higher yield depends on finding that specific modifier, so it may help to think of the three-gem run as the baseline.

The route sounds fairly simple and starts near a waypoint, but you need to free prisoners to open a passage. That extra step is worth factoring in when comparing the run with other options.