1) You cant tell how many stars / stats you had on your gem before upgrading
2) Beside getting a good stats roll you also need to worry about getting a gem with 3 stars / stats from level 1...
Please think about changing it, when you get a gem and start upgrading it, it should end up being the same PR and quality of other gems of the same tier... the end upgrade shouldnt be relayed on so many factors...
3) The stats should be permanent, for example it seems like you can get 3 of the same stats but with different priority... more CD than CH on 2 different rolls... again why add so much extra RNG?
( I might be wrong about this one? ).
2) Beside getting a good stats roll you also need to worry about getting a gem with 3 stars / stats from level 1...
Please think about changing it, when you get a gem and start upgrading it, it should end up being the same PR and quality of other gems of the same tier... the end upgrade shouldnt be relayed on so many factors...
3) The stats should be permanent, for example it seems like you can get 3 of the same stats but with different priority... more CD than CH on 2 different rolls... again why add so much extra RNG?
( I might be wrong about this one? ).