Dervis, you know the reqs for even more ranks?
Yay!
I think it's this, but Kornel should give you the numbers if anything's missing.
Brigadier General - Requires 4 platinum, 1 diamond.
Lieutenant General - Requires 8 platinum, 3 diamond.
General - Requires 10 platinum, 4 diamond.
Marshal - Requires 12 platinum, 5 diamond.
Legend - Requires 7 diamond
Blade - Requires 10 diamond
God hand - Requires 15 diamond
Do you think you can achieve the remaining diamonds?
There are 3 or 4 I got my eye on, however there are others I think are virtually impossible.