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God's Guide
Go talk to Dyana in Atlantis.
Show Quest Info
Introduction
It's very important to know how to combine gems.Dyana in Atlantis can help you combine gems. You need Gem Talismans in order to combine gems. You can use 3, 4, or 5 gems of the same level to combine into a higher level gem. The success rate is 50%, 75%, and 100% respectively. If all gems are the same kind, they will combine into the same kind, but higher level gem. If any of them isn't the same kind as the others, they will combine into a random kind of higher level gem.
NPC Dialog
If you have spent at least 1500 ZEN, Innacus in Atlantis Square will expand your bag when you reach Lv30 and Lv60.Pay a visit to Dyana, she will help you learn how to combine gems.