niceice
Brilliant_Rock
- Joined
- Jan 29, 2003
- Messages
- 1,792
We received an email today which indicated that another dealer was using the following piece of CGI script to determine which diamonds in his *inventory* were "Hearts & Arrows:
ideal=on&mintableperc=54&maxtableperc=57.5&mindepthperc=58&maxdepthperc=63.5
For those of you not quite familiar with this it is saying that diamonds with a table diameter between 54 - 57% and with a total depth between 58 - 63.5 are to be listed as ''ideal'' and according to the customer are being represented as "Hearts & Arrows" as well...
The customer asked "is this all there is to it?" and the answer is a Deafening & Resounding NO! Look, apparently some companies *buy* diamonds for their *inventory* using scripts, we prefer to buy them using our eyes... A few other reputable on-line dealers do the same... A diamond is not "Hearts & Arrows" unless it was cut to exhibit a crisp and clear pattern of Hearts & Arrows, it is not possible to guess the presence of a pattern by the numbers, at least not a crisp and complete pattern... All round brilliant cut diamonds will exhibit some sort of pattern, but not necessarily one which would be considered to be "Hearts & Arrows" by Japanese grading standards... This is because all round brilliant diamonds contain the basic facets which the pattern results from... ''Basically'' to keep things simple, the Hearts are a reflection of the kite shape bezel main facets appearing on the top of the stone and the Arrows are a reflection of the pavilion main facets which extend out on the underside of the stone from the culet point towards the girdle edge... But this alone does not make a Hearts & Arrows diamond, merely the reflecton of some sort of pattern. Want to know if a diamond being represented as being a "Hearts & Arrows" diamond is really a "Hearts & Arrows" diamond? Buy it from somebody who can provide you with photographs of the actual patterns, not a Photoshop edited picture of a pattern, an actual picture of the actual pattern. These are Photoshop edited pictures from a page on our site which discusses Hearts & Arrows diamonds:
These are ''real'' unedited pictures:
The difference between the real, unedited pictures and the magazine perfect pictures which were edited in Adobe Photo Shop is quite clear... The reality is that it is not possible to capture a perfectly uniform picture "on the fly" of a real stone because it would take hours to align the camera lens with the pattern of the diamond which is three dimensional... The pictures exist simply to provide insight into the extent and consistency of the patterns...
CGI Scripts or any other script for that matter, should not be used to select diamonds and determine the internal characteristics of a diamond... And you shouldn''t buy a diamond based upon a script either... The only purpose for a script in the diamond business is to list, sort and format an inventory list AFTER the diamonds that appear on that list have been evaluated by an experienced diamond grader.
Buy a "Hearts & Arrows" diamond that was evaluated by a script and you''re likely to get this:
Instead of what you paid for...
ideal=on&mintableperc=54&maxtableperc=57.5&mindepthperc=58&maxdepthperc=63.5
For those of you not quite familiar with this it is saying that diamonds with a table diameter between 54 - 57% and with a total depth between 58 - 63.5 are to be listed as ''ideal'' and according to the customer are being represented as "Hearts & Arrows" as well...
The customer asked "is this all there is to it?" and the answer is a Deafening & Resounding NO! Look, apparently some companies *buy* diamonds for their *inventory* using scripts, we prefer to buy them using our eyes... A few other reputable on-line dealers do the same... A diamond is not "Hearts & Arrows" unless it was cut to exhibit a crisp and clear pattern of Hearts & Arrows, it is not possible to guess the presence of a pattern by the numbers, at least not a crisp and complete pattern... All round brilliant cut diamonds will exhibit some sort of pattern, but not necessarily one which would be considered to be "Hearts & Arrows" by Japanese grading standards... This is because all round brilliant diamonds contain the basic facets which the pattern results from... ''Basically'' to keep things simple, the Hearts are a reflection of the kite shape bezel main facets appearing on the top of the stone and the Arrows are a reflection of the pavilion main facets which extend out on the underside of the stone from the culet point towards the girdle edge... But this alone does not make a Hearts & Arrows diamond, merely the reflecton of some sort of pattern. Want to know if a diamond being represented as being a "Hearts & Arrows" diamond is really a "Hearts & Arrows" diamond? Buy it from somebody who can provide you with photographs of the actual patterns, not a Photoshop edited picture of a pattern, an actual picture of the actual pattern. These are Photoshop edited pictures from a page on our site which discusses Hearts & Arrows diamonds:
These are ''real'' unedited pictures:
The difference between the real, unedited pictures and the magazine perfect pictures which were edited in Adobe Photo Shop is quite clear... The reality is that it is not possible to capture a perfectly uniform picture "on the fly" of a real stone because it would take hours to align the camera lens with the pattern of the diamond which is three dimensional... The pictures exist simply to provide insight into the extent and consistency of the patterns...
CGI Scripts or any other script for that matter, should not be used to select diamonds and determine the internal characteristics of a diamond... And you shouldn''t buy a diamond based upon a script either... The only purpose for a script in the diamond business is to list, sort and format an inventory list AFTER the diamonds that appear on that list have been evaluated by an experienced diamond grader.
Buy a "Hearts & Arrows" diamond that was evaluated by a script and you''re likely to get this:
Instead of what you paid for...