Tiffiany daimonds ratings....

[petah]

Alright, i know there is quite a bit of debate and information on Tiffany stuff already but a quick search didn't come up with the information i am looking for.

I have heard that Tiffany has their own labs to grade their daimonds. Is this true? If so, i hear that their grading is stricter meaning if a Tiffany rock got a "G" color, this same rock will get a "D" or "F" color rating if it was graded by GIA/AGS or the like. Any truth to this?

 

[diagem]

Date: 9/19/2007 11:39:58 AM
Author:petah

Alright, i know there is quite a bit of debate and information on Tiffany stuff already but a quick search didn''t come up with the information i am looking for.

I have heard that Tiffany has their own labs to grade their daimonds. Is this true? If so, i hear that their grading is stricter meaning if a Tiffany rock got a ''G'' color, this same rock will get a ''D'' or ''F'' color rating if it was graded by GIA/AGS or the like. Any truth to this?

First: Yes
Second: NO!!!

 

[JohnQuixote]

In my experience T&Co grading is strong; equivalent to GIA in strictness.

 

[diagem]

He John..., we clicked on the same second...,

 

[JohnQuixote]

Cool. How'd you wind up first, you sly dog?

 

[diagem]

Date: 9/19/2007 11:51:35 AM
Author: JohnQuixote
Cool. How''d you wind up first, you sly dog?

 

[Garry H (Cut Nut)]

We need 1/10ths of seconds

 

[WorkingHardforSmallRewards]

well, I do remember that Mr. gary who just posted up above, at least I think it was him, but someone important anyway, said once that Tiffany can occasionally be even stricter than GIA.

Whoever it was said that you can occasionally find a diamond that Tiffany might rate as an H but GIA would rate as a G.

but, to the poster, it isn''t that all GIA G''s are the same as tiffany H''s. It is just that there are borderline grades, borderline G/H and while most of the time GIA would be just as strict as Tiffany, there might be a few instances where Tiffany, for the sake of honoring its brand name, might err on the side of caution and mark it as an H, when GIA says it is close, very close, but in fact a G.


Certainly though, you are not talking a whole color grade difference, and def not 2 or 3 or anything so drastic as that!

 

[Garry H (Cut Nut)]

Date: 9/19/2007 7:27:12 PM
Author: WorkingHardforSmallRewards
well, I do remember that Mr. gary who just posted up above, at least I think it was him, but someone important anyway, said once that Tiffany can occasionally be even stricter than GIA.

That is not quite what I wrote earlier

Date: 9/19/2007 7:27:12 PM
Author: WorkingHardforSmallRewards
It is just that there are borderline grades, borderline G/H and while most of the time GIA would be just as strict as Tiffany, there might be a few instances where Tiffany, for the sake of honoring its brand name, might err on the side of caution and mark it as an H, when GIA says it is close, very close, but in fact a G.


Certainly though, you are not talking a whole color grade difference, and def not 2 or 3 or anything so drastic as that!

That is exactly the interpretaion of my earlier posts on the subject WH4SR

 

[WorkingHardforSmallRewards]

oops, double post, but sorry for poor summary at first Gary, I am glad I was able to convey your meaning in the end though

and I think its really funny that they dont use that same caution when making cut evaluations. given the recent changes in cut grading of those major labs I would think that Tiffany, for the sake of its brand name, would not want to be calling cuts excellent that come back from GIA (or even AGS if they were to ever be sent to them), as Very good cuts. As we all know an happen and as came up in a recent thread. Thus, I suspect in a few years they will probably revamp there cut grade requirements so that at the very least they will almost always yield GIA excellent when Tif gives it an excellent. but we will see....

 

[Ty Cobb]

I don''t know if that will be the case. I am actually coming to the decision that Tiffs grades there cut to a different standard all together. I know that is hard to imagine, but run there stones through HCA and they unanimously will always come in on the more fire side of things in the same basic range every time.

It isn''t that there stones are miscut all over the place, it is that they tend to cut them(or prefer them cut) to a slightly different standard then what most graders prefer. Even diamonds from tiffs that come in the perfect range on HCA are slightly skewed toward the more fire side of the scale.