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 To Cut Nut : About ideal cut defined by hca
P:  5/11/2002 6:48:50 PM  
PtlOO
PtlOO

Rough Rock
Total Posts: 3
Last Post: 5/11/2002
Member Since: 5/11/2002
 
 		Dear Sir,

I've read through the tutorial, really amazing introduction, thank you for your kind work. i compared carefully between the worst case you presented for AGS 0 ,Tolkowsky Ideal and also with the stone I plan to buy,
following table is the comparison.

Table / Crown Angle / Pavilion Angle / Pavilion %
The Worst AGS 0 57 35.8 41.25
Tolkowsky Ideal 53 34.5 40.75 43.1
The one I found 55 34.2 41.2 43.4

you see, the difference is not too much, at least for such layman like me. Would you give me some advise on the diamond I find comparing with the ideal cut defined in your theory? Thank you very much!
Posted:  5/11/2002 6:48:50 PM

 There are 2 replies to this message.  There are 2 replies on this page.
P: 5/12/2002 3:09:16 AM
Garry H (Cut Nut)
Garry H (Cut Nut)

Ideal Rock
Total Posts: 11,586
Last Post: 11/25/2009
Member Since: 8/16/2000
 
 		If this chart comes out you will see how critical the small increase in pavilion angle has on the stone you are considering.
Have you discovered HCA yet? - the third link at the top - Cut Adviser.

Sorry the chart did not come out, but if you would like to read more detail then www.diamond-cut.com.au will bore you to tears:)

Garry Holloway FGAA DipDT

HCA and Ideal-scope developer

http://www.ideal-scope.com and
http://www.HollowayDiamonds.com.au

Posted:  5/12/2002 3:09:16 AM
P: 5/12/2002 6:10:56 AM
Pricescope
Pricescope

Administrator
Total Posts: 8,265
Last Post: 1/5/2008
Member Since: 1/1/2000
 
 		This is the chart from Developing the Cut Adviser system


Pricescope
Posted:  5/12/2002 6:10:56 AM

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