Discrepancies between lab certs--HRD & IGI

"People who possess great qualities, do not need to show off".

I guess it was one of those subjective things… it twas a border line SI1 and 2… HRD took the stance to give it a clear SI1.. IGI decided to hedge their bets and mark it inbetween.

Colour… that’s open to whose viewing it I suppose.. its been said on here that unless its quite clear then colour grades can differ between ppl, and the lab by a grade… but the question should be asked as to why… is it a borderline case or not.  If one graded F and the other I then there has been a mistake somewhere – as to where needs to be assessed.

Dunno why it would be sent to 2 labs… maybe the IGI was the initial rep.– and it was sent to HRD for a second opinion?

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Sharon,

Dealers will send a stone to an additional lab because they are hoping for better results.  They normally will then discard the report from the lab that reports the inferior grade. 

I was under the impression that IGI would only show a split grade if they examined a stone mounted and were therefore required to estimate some of the data.   IGI has a service that they call an appraisal wherein they include a price that is supposedly comparable to those charged by some unnamed mythological (and very expensive) store.  HRD won't do this. Perhaps the dealer thought this number was somehow helpful to you in making your decision.

Neil Beaty
GG(GIA) ISA NAJA
Independent Appraisals in Denver

There's never a crowd when you go that extra mile.

"People who possess great qualities, do not need to show off".

That’s to be expected… a grading of SI is far from the IF flawless grading… what matters is ‘can you see the inclusions without the aid of a Loupe?’ and if so… is it a problem… any you can see… does the person whose setting it (unless its already set) reckon they could hide the visible inclusions under a prong. 

I think inclusions vary… an SI grading could be for a single large inclusion… or it could be a lot of small inclusions – invisible to the naked eye… but never the less, the amount of tiny inclusions add up to it being given the SI grading.

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Date: 2/11/2005 106:29 AM
Author: canuk-gal

Thing is,  the split grading even for insurance purposes (appraisal) is dicy to me--with what would your stone be replaced should it need be:  with a F S1 or 2 or G SI1 or 2?  Furthermore,  how does one determine what is reasonable to pay (negoitation is possible)--their is an obvious difference in cost between these four grading variables. BTW, I looped the stone and saw multiple scattered inclusions.

cheers--Sharon

There's never a crowd when you go that extra mile.