Talk:Cumulative Costs/@comment-206.159.155.209-20121127204730/@comment-86.2.95.85-20130507131825

Actually its 1 gem = 3 minutes rounded down (Ie 4.4 minutes is still 1 gem, 4.5 to 7.4 minutes is 2 gems)

This is only true of the first hour, after that the gem per minute ration improves, I believe for hours 2-6 its 1 gem per 4 minutes, 7-12 1 gem per 5 minutes and possible better further on but have not calculated that far.