Recertification of diamond

[Matilda]

just wondering if a diamond that has been certified in the past by GIA, gets updated later on again by GIA, would the diamond ever come back with higher grades? I personally think not possible, more likely to come back with lower grades

 

[Matilda]

anyone please?

 

[ringo865]

If they know there is a prior report, and are just renewing it, I believe the color and cut would stay the same. The clarity could differ if, say, in the intervening time, a chip occurred or something.

If GIA thinks it is a fresh analysis (i.e., no report number inscribed on the girdle), it could differ if it was on the borderline for color or clarity. I think cut would be the same, as those are calculated by number (although are averaged).

Why do you think you wish to resubmit it ? Why do you fear it could be downgraded?

 

[OoohShiny]

Stones are graded by humans, therefore there is a possibility a stone may come back a different grade if it is 'on the border' between grades.

 

[OoohShiny]

anyone please?

This is an international board with forum members who have day jobs and lives to lead. It is unreasonable to expect a response in 30 minutes. (As is the case on any forum.)

 

[Matilda]

OoohShiny...you are right I am sorry! and kinda realised that when I sent that message
thanks or the border tip

ringo865 a diamond I am looking to buy had a GIA report five years old, I asked for it to be renewed as I wanted to ensure there had been no damage since then

I believe clarity will either be the same or worse...

Others believe that the colour may be graded higher, which I find very strange as the same lab is being used. I just suppose I wanted to know if they are trying to get my hopes up for nothing

 

[OoohShiny]

There has been some discussion around whether clarity grading has been getting 'softer' in recent years (so a historical SI1 would get a VS2 now, for example) but it would seem impossible to verify whether or not this is the case.

A re-grade is a good idea on an older stone if you are buying secondhand or 'New Old Stock' - it means you can check whether it is in good condition.


re: the forum thing, I think of it like a fridge in a communal kitchen - stick a post-it note on it with a question and someone may reply to it with another post-it note when they are passing the fridge, but you have no idea how long it will take or who will reply

 

[Matilda]

haha yeah throwback to uni days!

thank you anyway for the help , I am just going to hope it comes back the same!

 

[OoohShiny]

Please do let us know how it goes - one example does not make a comprehensive case, of course, but it is interesting and adds to the knowledge base

 

[Rockdiamond]

Having re-submitted dozens of stones over the years:
Our experience is that the vast majority come back with the same grade.
Variables include
* how old the original report is...... it's more common to find a grade change on a 20 year old report
* the grade of the stone. "Regular" diamonds are less likely to see a grade change as compared to some fancy colored diamonds.....but even then, GIA is fairly consistent.

 

[Wewechew]

Definitely come back and tell us how the new cert compares to the old!

 

[Dancing Fire]

This is an international board with forum members who have day jobs and lives to lead. It is unreasonable to expect a response in 30 minutes. (As is the case on any forum.)

There are more things in life than diamonds?

 

[Matilda]

there is a group of us with bets going ..... quite fun actually, so I will most definitely update!

@Dancing Fire ....hmmm I have recently become a wee bit addicted, shame I have to distract myself with silly things like wow, relationships etc SIGHHH

 

[Matilda]

though have recently been googling how to become gemologist....turn my obsession into a career hmmm