M MarLindaJacobs Rough_Rock Joined Nov 17, 2011 Messages 6 Nov 17, 2011 #1 All things considered, how reliable are low HCA scores on EGL diamonds?
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stone-cold11 Super_Ideal_Rock Joined Sep 9, 2008 Messages 14,083 Nov 18, 2011 #2 Depends on the numbers used. HCA is more accurate with angles but most EGL only supplies % height for the crown and pavilion.
Depends on the numbers used. HCA is more accurate with angles but most EGL only supplies % height for the crown and pavilion.
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