I had around 5 bil in rares now its around 1.5bil lower than that (low level rares mostly). I usually put all my gp in rares instead of keeping it as cash.
In gold, I'm really not too sure possible somewhere 1-2bil.
A tad over 600m, from boxing. However, a loss streak of 6 when doubling cleaned me. I wasn't too sad, i had started from 1.5m anyway, and boxed it too 600 in a matter of days. I actually have a log here if you go through my threads
1 and a half party hat sets, 1 week before staking was gone, I did 3 huge bets with someone that I had better stats then and I lost 3 times in a row losing it all. It was a good run I started with only 20m.
when i was a noob before free trade i used a cannon at green drags to make my first 10m for saradomin sword, then i kept going for d claws which were 38m at the time. I got them then a few weeks later was hacked.. Then I bought some cash coz i really didn't wanna camp at green drags. Got a heap of gear with it, did some slayer and overtime made it to like 90m, then i used it all on 95 prayer. few weeks later i decided pking wasn't fun on a main so i made a pure