njones16|1474356111|4078699 said:I've only been searching for GIA diamonds for my engagement ring but have spotted what seems a great IGI diamond.
Is GIA the Holy Grail or is IGI also very reliable/accurate?
Any help greatly appreciated!
Is there any solid evidence for the claim that AGS is softer on colour than GIA?Shelby_Buchroeders|1474388194|4078846 said:I'm a snob but having worked with every lab possible, GIA is the lab I trust the most. They are the most rigorous on color and grade and while AGS may be close behind, I still like the consistency of the GIA.
Shelby_Buchroeders|1474390756|4078873 said:OoohShiny|1474388983|4078858 said:Is there any solid evidence for the claim that AGS is softer on colour than GIA?Shelby_Buchroeders|1474388194|4078846 said:I'm a snob but having worked with every lab possible, GIA is the lab I trust the most. They are the most rigorous on color and grade and while AGS may be close behind, I still like the consistency of the GIA.
I'm sure I've seen it mentioned before but I don't think I've seen any empirical analysis.
From my experience in store. We had 2 stones that were AGS that we then sent to the GIA for certifications and 1 was 2 colors off and the other was 1 off. Maybe not a big deal but when there is a price difference for a higher color grade, I'd go with the GIA. When we get an AGS cert for a stone that we are not interested in getting cert'ed by GIA, we typically communicate the lower color grade.
Karl_K|1474433313|4079111 said:The biggest problem is that igi reports vary from totally awful to not all that bad depending on which lab and report.
If there is a $ value listed on the report, the paper is useful as very poor toilet paper and not much else.
I think a member said IGI from HK is good.Skhii|1474441177|4079123 said:Karl_K|1474433313|4079111 said:The biggest problem is that igi reports vary from totally awful to not all that bad depending on which lab and report.
If there is a $ value listed on the report, the paper is useful as very poor toilet paper and not much else.
Which lab locations and reports are good? IGI NYC and any diamond certificate that isn't an appraisal?
Shelby_Buchroeders|1474390756|4078873 said:OoohShiny|1474388983|4078858 said:Is there any solid evidence for the claim that AGS is softer on colour than GIA?Shelby_Buchroeders|1474388194|4078846 said:I'm a snob but having worked with every lab possible, GIA is the lab I trust the most. They are the most rigorous on color and grade and while AGS may be close behind, I still like the consistency of the GIA.
I'm sure I've seen it mentioned before but I don't think I've seen any empirical analysis.
From my experience in store. We had 2 stones that were AGS that we then sent to the GIA for certifications and 1 was 2 colors off and the other was 1 off. Maybe not a big deal but when there is a price difference for a higher color grade, I'd go with the GIA. When we get an AGS cert for a stone that we are not interested in getting cert'ed by GIA, we typically communicate the lower color grade.
igi labs in the usa are considered the weakest of the igi labs.Skhii|1474441177|4079123 said:Karl_K|1474433313|4079111 said:The biggest problem is that igi reports vary from totally awful to not all that bad depending on which lab and report.
If there is a $ value listed on the report, the paper is useful as very poor toilet paper and not much else.
Which lab locations and reports are good? IGI NYC and any diamond certificate that isn't an appraisal?