“SI3” does it exist

Time,SI3 is grade that is often used bythose who are selling Diamonds
It is not a grade that is recognised by any of the teaching Associations
 
It is most certainly NOTa grade that is taught by any teaching institute anywhere; neither the GIA, GemA
or GAA have such a grade in their teachings
 
The J&W is now a member of CIBJO and as such we the members should abide by the CIBJO rulings and recommendations and SI3 is NOT a grade in the CIBJO articles
 
The SI3 grade is one that some diamond merchants use in the process of justifying the price charged for their diamonds
 
Both the GIA and GRD would I am sure totally refutethe existence of an SI3 grading,
 
A diamond merchant or anyone for that matter is entitled to state what they want in the selling of their goods; but itdoes not mean they are correct, anyone is entitled to disagree with the
gradings of the GIA orHRD or any laboratory, but are the correct in doing this?
 
Is it ethical to sell and supply your own grading certificate for diamonds?
 
I have seen certificates that have split grades VS2/SI1, SI2/SI3 and even SI3/I1 to me this is
nonsense as when you are grading a loose diamond I was taught to make a call it is either a VS2
or it is an SI1, if in the course of my practical had I offered such a split grading Iknow for sure
I would have failed
 
In the grading of a diamond yes there can be an SI2 diamond that is at the high or low end of the
scale, but to state it is an SI3 grade when this grade is not a recognised grade is to me unacceptable
 
The GANZ, (Gemmological Assn of NZ) the JASNZ (Jewellery Appraisers Society of NZ) and
JVS (Jewellery Valuers Society) do not include sucha grade in any of their teachings and all
agree there is no such grade as SI3
 
With all diamond grading there are many variables and these are the opinion of the appraiser, there are
just 2 certainties; the weight and the cut grade, instrumentation to determi