Crystal Sizes
Talking about size, crystal measurement is made in means of length and without the top Octagon.
Standard sizes are:
1.5" (38 mm)
2" (50 mm)
2.5" (63 mm)
3" (76mm)
. 3.5" (89 mm)
. 4" (101 mm)
To Print the Ruler, click on the image below
Note: you have to select Actual size when Print Window Pop Up