As shown in the below mentioned post, the cost of the 4 star awakening gem crystal is supposed to be 500,000 infinity dust, whereas it is 1,000,000 in the store as of now.
Either one of them is wrong... We will be certainly happy if its only 500,000.
https://forums.playcontestofchampions.com/en/discussion/64463/infinity-dust-and-the-infinity-dust-store#latest