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ť GIA approx possible new Round Cut Grades

GIA approx possible new Round Cut Grades

P: 11/11/2004 2:06:28 AM
Garry H (Cut Nut) Ideal Rock Total Posts: 11,584 Last Post: 11/24/2009 Member Since: 8/16/2000	There are stones graded 2 and 3 that fall outside these best fit ovals based on some range data given in the recent "Foundation" article. I could be wrong, but I was not with AGS Garry Holloway FGAA DipDT HCA and Ideal-scope developer http://www.ideal-scope.com and http://www.HollowayDiamonds.com.au
Posted: 11/11/2004 2:06:28 AM

There are 2 replies to this message. There are 2 replies on this page.

P: 11/11/2004 2:11:26 AM
headlight Ideal Rock Total Posts: 656 Last Post: 8/19/2009 Member Since: 11/2/2003	Garry, This is based on a 55% table -- what about stones with tables other than 55%?
Posted: 11/11/2004 2:11:26 AM

P: 11/11/2004 2:14:54 AM
valeria101 Ideal Rock Total Posts: 14,048 Last Post: 4/30/2006 Member Since: 8/29/2003	Wow! This chart makes GIA1 a hazard... in favor of the GIA2 grade... Did they take into consideration some cut grading factor that the HCA does not? Whatever happens, it will not be easy to argue with this lab's word Ana "The greatest experts are only as good as the sum total of what they have seen." [Souren Melikian]
Posted: 11/11/2004 2:14:54 AM

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