Just now I followed your instructions, along with earlier posts as well.
I can find the values using GG and alter them (using Rule the Kingdom 2.0) and my new massive numbers are shown up top ingame too - but they're not the real values! If i go into the shop, and try to spend 700 diamonds (of my supposed 99,999 diamonds that I just created), the game says I'm short 693 diamonds (yes, my 'real' value must be, and was 7). This is the same with my gold.
Can someone assist? What am I doing wrong?