Board Thread:Plants vs. Zombies Heroes/@comment-25546049-20160603234435/@comment-3474455-20160613015903

So here's the average gem earning rate for each rank, assuming that you always win, suffer from no internet issue and get the streak bonus every time. I'm currently at gold 30 and it's nearly impossible to rank up, so I'm just assuming that gold league will give you 50 per rank:


 * Wood: 20 gem per 3.33 matches = 6 per match


 * Bronze: 30 gem per 3.33 matches = 9 per match


 * Silver: 40 gems per 5 matches = 8 per match


 * Gold: 50 gems per 20 matches = 2.5 per match

So basically from wood to bronze the rate rises quite a lot, from bronze to silver the rate slightly decreases, and from silver to gold the rate plummets. So from gold onwards there's very little incentive to keep playing for gems aside from the occasional quests, seeing that the matches become much harder at that league and the earning is nearly non-existent.