Purchase medals in 25's and you can combine colors and different IM medals to get the best price.  For example, if you buy
 25) IM262 Gold, 25) IM201 Gold 25) IM216 Gold, 25) IM202 Gold & 25) IM203 Gold you get the 101-499 medal price.
This medal is available in gold only.
IM Series Colorful 3D Medals