parsonsjnyc
Rough_Rock
- Joined
- Aug 27, 2020
- Messages
- 38
Hello everyone!
I remember a diamond dealer telling me that GIA certification in different countries is not as strict as US GIA certification.
Just wondering if I would need to get a US GIA certification for a diamond with a GIA certification done in India.
What do you all think?
A US dealer supporting the US
GIA branches he works closed with and where he sends and gets his diamonds from.
GIA has rigorous controls in place to make sure that submissions are anonymized to prevent any outside influence on results. It is also my understanding that diamonds submitted at one lab do not necessarily get graded at that lab. So a diamond submitted in India may get graded in New York or Hong Kong and vice versa. It is supposedly impossible to tell in which GIA lab, or on which continent, a given diamond was graded.
It was widely reported by US dealers years ago but with no evidence - possibly sour grapes.
I regularly see diamonds listed in India and the same diamond pops up on a US dealers site for a month later at a few percent higher in price.
I bet they dont resend it to GIa for a new report!
See above. I"ll add that you can not tell where the stone was graded by looking at the report. This is not on there. Even personally submitting the stone to a particular lab does not mean it will be graded there (also mentioned above).
The GIA has done a commendable job to keep bias out of their grading. Behind the scenes, temptations might be offered to push a grade upward for a promised reward. This is what GIA has done a good job in combating, but they can't prevent temptation offered by outsiders. There does not seem to be a problem at this time with the integrity of GIA reports.
Yeah, I've heard that. I've also heard that it's inculcated in the bar code. I've checked. Neither is true, although both are commonly stated.A dealer said that one can tell which country the diamond was GIA appraised by the first 3 numbers of the report. Maybe he was just trying to get me to buy one of his diamonds.
This was the case 18 years ago nearly resulting in the cutting off of a diamond salespersons right hand.The GIA has done a commendable job to keep bias out of their grading. Behind the scenes, temptations might be offered to push a grade upward for a promised reward. This is what GIA has done a good job in combating, but they can't prevent temptation offered by outsiders. There does not seem to be a problem at this time with the integrity of GIA reports.
No it was about suppliers/cutters lab shopping for a better grade among the gia labs.
I recieved confirmation from the top levels at GIA that just because a diamond is submitted to a given lab does not mean that the diamond was graded in that particular lab.
So the fact that a report has the name and address of the submitting party, and that entity is based in India, is not proof that the diamond was actually graded in India. The submitting party itself does not even know in which lab the diamond was graded. They only know which lab they submitted it to.
Quote from the response I recieved with some further detail:
"GIA routinely moves diamonds between labs for capacity planning, client anonymity and quality control. We’ve been doing so for years. We do the same with the US labs - items submitted in Carlsbad may be transfered to our NY lab for processing and visa versa."
Only Clarity is done by people at GIA these days. Does not matter for Cut, Carat, Color, Fluoro etc
Thanks Garry H! I never realized that only clarity is done by people at GIA. It would be nice if these agencies were more transparent.
Like many things in the diamond industry its based on things that were true at one time.For me, it is a scare sales tactic by a US vendor. There maybe some truth in inconsistency among different GIA labs worldwide. I think that's not the point.
The point is that this US vendor is giving out impression that he offers GIA-US graded diamonds whereas online is full of GIA-India graded diamonds. I can totally see US consumers choosing diamonds graded by GIA-US if given choice. I see similar tactic in Canada. When I mention GIA, they say "that's AMERICAN".
As [B]parsonsjnyc[/B] wrote Bryan, some more transparency would be great.I do know that some automated color grading is being done at GIA. It is my understanding that only a subset of diamonds (smaller stones, no fluorescence, etc) are getting graded purely by proprietary GIA instruments.
As [B]parsonsjnyc[/B] wrote Bryan, some more transparency would be great.
I like transparency. A lot. It is one of our core values at Whiteflash. We even publish the entire 'formula' for our brand so that everyone can hold us accountable for our claims.
However, I am not sure what the value is to the public to know that a certain percentage of stones are being colored graded using technology rather than the human eye. The entire goal is for the grading to be accurate and consistent. Unless that goal is not being met, does GIA not have the right to decide themselves how to get the job done? What would the public do with that information?
I like transparency. A lot. It is one of our core values at Whiteflash. We even publish the entire 'formula' for our brand so that everyone can hold us accountable for our claims.
However, I am not sure what the value is to the public to know that a certain percentage of stones are being colored graded using technology rather than the human eye. The entire goal is for the grading to be accurate and consistent. Unless that goal is not being met, does GIA not have the right to decide themselves how to get the job done? What would the public do with that information?