It's hard to detect with all those 0's.
So I suggest:
When gold bypass 1000, for example, 1001.
Change the display to 1k 1g
well for 1000000 (which is confusing with all those 0's), for example 1000001 (your eyes should be exploding now

Change display to 1m 1g, so that this could prevent ppl from confusing you with 100000 (which is 990000 less!!!)
another example, 1234567g (lol)
would be displayed as.
1m 234k 567g.
I know this would be really hard for OTM but here's why.
how much gold ? (yes a little exaggerated)
1000000000000000000000000000
Could you tell the difference now?
100000000000000000000000000
one 0 made the difference, but that's a BIG difference, considering the trade display, all those 0's 0_o.
Hope the letter system could be implemented in CH.
My 2 cents about gold scamming related stuff.