Estimating pavilion depth and angle the old-fashioned way.

[Garry H (Cut Nut)]

Put this in the natural thread, thought it might be useful here too:
Estimating pavilion depth and angle the old-fashioned way. Just wrote this up for my one day book:

 

[Garry H (Cut Nut)]

Here are some images to play with

1st just under 40 degree, 2nd 40.6, third about 40.1 and last around 40.5 degrees.