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Stephan

Ideal_Rock
Joined
Feb 13, 2003
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2,917
HRD also has H&A grading.
It seems like they don''t like shallow combos.
If I understand everything, HRD doesn''t like longer lower halves, especially in diamonds with a deep pavilion.
I think they are missing a lot of beautiful combinations.
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http://www.wtocd.be/Diamond/D_Articles/Article2_%20Relation_H&A_and_cut_parameters.pdf
 

strmrdr

Super_Ideal_Rock
Joined
Nov 1, 2003
Messages
23,295
yea they are.
There is a discussion around here somewhere about it.
Its about a pretty heart picture not performance.
That is the biggest problem with h&a sometimes the highest performance and best looking diamond is at the ends or over the end of the h&a pretty heart picture spectrum with some c/p angle combinations.
 
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