peachster Rough_Rock Joined Jan 9, 2007 Messages 73 Mar 14, 2007 #1 Hi, If my GIA report does not list crown angle and pavilion angle percentages, is there any way to calculate these? I wanted to try HCA on the stone. Thanks, P.
Hi, If my GIA report does not list crown angle and pavilion angle percentages, is there any way to calculate these? I wanted to try HCA on the stone. Thanks, P.
belle Super_Ideal_Rock Joined Nov 19, 2004 Messages 10,285 Mar 14, 2007 #2 no, you''ll need to have a sarin report done to get the angles.