Start gathering garnets when you think there will be a few days before Kundun Seal opens (different depending on who it is/what level they are), try to gather some extra garnets if you think you cant make 14k a day atleast or if you are gonna buy other stuff during Kundun seal!

This will be avalible to anyone who isnt max level during Kundun Seal. It will cost 14k per day! silver dungeon will ONLY drop green potential stones!

1x attempt - free, 2x attempt - 2500 garnets each

summon bosses x3 - 3k garnets each

These will greatly boost cp/stats! Make sure you raise % to 100% to avoid losing any.