Collect three or more figures of the same color into horizontal or vertical line and they will disappear .Special combos will get you special power-ups, which you can combine with your jewels to help you clear them.
Click two jewels to switch them and make a vertical line or horizontal row of 3 or more jewels of the same color to clear them and any stone slabs beneath them. Get rid of all of the stone slabs to finish each level.