Print a template, place one larger stone in the center and smaller stones on the circles or where lines cross. Read the full method in How to make a crystal grid.
Template 1: Flower
Center stone in the middle, six stones where the petals meet the inner ring. wellbeingbodysite.com
Template 2: Six-pointed star
Center stone in the middle circle, one stone on each of the six points. wellbeingbodysite.com
Template 3: Square
Center stone in the middle, four stones on the corners and four on the sides. wellbeingbodysite.com