Board Thread:General Discussion/@comment-25404524-20161116032712/@comment-29527649-20161117033857

I believe it is dependent on the crystal requirement. I just upgraded my Diamond Extractor from level 4 to level 5 and it required one Carved Frozium Crystal with nine Frozium Crystals and I received 146. I then upgraded it from level 5 to level 6 which required two Carved Skylite Crystals and multiple Skylite Crystals. I received 3,517 from this upgrade.