where to get diamons learning/promo materials pro use?

[crosado]

Hello,
I was wondering where can I find round diamonds learning/teaching/promotion materials
people in the trade use? For example, my appraiser showed me all these nice
shinny laminated posters showing/explaining the 4Cs, size/weight comparisons, Tolkowsky Ideal Cut,etc.

basically all the basic and advanced stuff(facets,crown/pavillion angles,etc) about round cuts summarized as plain as possible.

if anyone can point me to the right direction on getting this or similar printed materials I''ll really appreciate it.

thanks

 

[Diamondsbybree]

You want charts?