holloway cut adviser

lawmax

Thx for the kind words, yes it is a system entirely based on perception of beauty. I have been on a buying trip in Israel and checked many stones as I was buying on Sarin proportions, especially around the outer perimiters of excellent (scores of under 2).

We are about to make a small change in the cut adviser that will make the spread measurement include girdle thickness. It will require entering the total depth % as well.
We had hoped to find a way to quantify girdle thickness, but because the verbal descriptions and different grading labs do not add up to consistant numerical measures, we have decided to use depth/diameter as a simple spread factor. This does not take into account the amuont of crown that stands above a setting when seen from the side view - what I call vertical spread. Does anyone think this is important?
Think I will start a new thread on this topic.
Garry
PS someone on DT asked why I am not posting - it was taking too much research time and making me unhappy. Happy to respond personally to any ?'s though.

Garry Holloway FGAA DipDT

HCA and Ideal-scope developer

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