Diamond Valley

This game is played with mouse only. You objective is to bring 3 gems of the same type at a place for example. If there are two gems, a green gem in a line and the next line. If there is a blue gem under the green gem. Click on the blue gem and then click on the green gem so that the green gem is replaced by the blue gem and all the blue gems come into one line. Change the background colors by making rows of diamonds disappear.