Studying Diamonds

[nauman8287]

Hi Everyone, All three diamonds are H&As and within ideal proportions. Other than the colour, all have the same clarity. What other technicals should I study in these diamonds? Can you please point out the other technical aspects.

https://www.jamesallen.com/loose-di...ferral&utm_campaign=earthdiamonds-ps&a_aid=ps

https://www.whiteflash.com/loose-di...ity-round-excellent-cut-sku-a4590521?a_aid=PS

https://www.jamesallen.com/loose-di...ferral&utm_campaign=earthdiamonds-ps&a_aid=ps

And then this one below which is not under the category of H&As yet shows good arrows and is within ideal proportions with HCA score of 0.9. How different will it be compared to the above ones?

1.05 Carat round diamond

This 1.05 carat round diamond G color si1 clarity has Excellent proportions and a diamond grading report from GIA

www.jamesallen.com

 

[momofive]

I’m not an expert, but to my untrained eye, I would only consider the WF diamond. It is an ACA which means it has to meet certain standards, even for an S1), but I also don’t see a diagram showing the inclusions (which I think is weird).

I see lots of things happening with the last JA diamond, but I don’t know what they all are, except it may be poorly cut. I see extra arrows and not a well defined table.

The first JA also looks to have leakage under the table and some wonky ness with the cut.

Emphasis: I am not an expert. Wait for one of the pros to come along.

 

[lovedogs]

The first JA stone might not be eye clean and/or the inclusions might negatively impact performance. The WF option looks amazing. The second JA stone looks ok, and the last JA option doesnt look as good at all.

I would choose the WF easily over the alternatives

 

[tyty333]

Are you "studying diamonds" to learn or to learn and make a purchase of one of the above (possibly)?

 

[nauman8287]

Are you "studying diamonds" to learn or to learn and make a purchase of one of the above (possibly)?

At the moment I am just learning to purchase one but not the above ones. Making sure I have enough concepts to shortlist a few and share them with the group to pick and choose one.

 

[sledge]

It is an ACA which means it has to meet certain standards, even for an S1), but I also don’t see a diagram showing the inclusions (which I think is weird).

Short on time so I will offer more comments to the OP later but this caught my attention as it confused me.

This is a newer stone with GIA lab report AND the AGS light performance addendum. If you aren’t aware, AGS “merged” with GIA the end of 2022 and no longer offer a complete AGS report. Only the addendum is available on stones now.

Anyhow, if you click on Diamond Certificate you clearly see the clarity plot for the stone. Whereas the AGS Ideal Report provides a copy of the light performance addendum.

 

[sledge]

FYI, the first JA TH stone has a lab report dated 7/2022. Not sure if it’s been in inventory that long (almost 9 months+) or was a trade. It’s getting to that point I may request an updated report if a purchase was seriously being considered.

More to my original reason for this post is the first JA stone wasn’t even eligible for an AGS addendum report as it was graded 7/2022 and the option didn’t exist until 1/2023. It may seem nit picky but when paying a premium for a H&A stone I dislike this as you are simply getting less bang for the buck and not quite as high of confidence.

The 3rd option was also a JA TH stone and also had a GIA lab report. It is dated 2/2023 so the AGS addendum was available to purchase but clearly JA did not pay for the addendum.

Here is a link to the GIA report check on their website along with a screen cap.

https://www.gia.edu/report-check?reportno=7452842023



In comparison here is a link to the GIA report check on the GIA website for the WF ACA stone. You can clearly see the difference.

Not a huge surprise as JA doesn’t typically provide as much extensive data and imaging as WF does, even on their TH collection.

https://www.gia.edu/report-check?reportno=6224864265

 

[oldminer]

One thing for sure now, AGS addendums for GIA reports will agree with GIA for color and clarity. Plenty of room left for doubt and confusion. I'd sure like to see a competing lab such as GCAL get more recognition as a source of evidence of super fine cut quality.

 

[Texas Leaguer]

One thing for sure now, AGS addendums for GIA reports will agree with GIA for color and clarity. Plenty of room left for doubt and confusion.

Hi David,
I am not sure what you mean by this statement. The GIA report and the AGS addendum report are separate and distinct analyses. They neither agree nor disagree with one another.
The new AGS addendum report helps to remove doubt and confusion created by GIA's broad cut grade system, by providing additional evidence that the Excellent cut in the report is really excellent.

 

[Tonks]

Hi David,
I am not sure what you mean by this statement. The GIA report and the AGS addendum report are separate and distinct analyses. They neither agree nor disagree with one another.
The new AGS addendum report helps to remove doubt and confusion created by GIA's broad cut grade system, by providing additional evidence that the Excellent cut in the report is really excellent.

Hey, Bryan!
Perhaps I can shed light as a consumer. I’m in the middle of a purchase with y’all right now (a custom cut ACA). As someone who was used to seeing AGS reports for years, it is odd to all of a sudden have a GIA report where the numbers are rounded. Yes, the AGS addendum helps remove doubt by granting the ideal rating, but as a PSer, I would still love to see the numbers that would have been on the original AGS report. Your advanced images help me be confident in performance, but I’ve been here long enough to want to continue to be learning, and to want to know the exact numbers for my stone.

 

[Texas Leaguer]

Hi @Tonks ,
I understand your feeling. The adjustment process to the new normal has been a bit of a challenge for all of us!

A few important things to keep in mind. First, we have not changed any of the cutting criteria for A CUT ABOVE. Second, you are correct that the advanced images we provide are visual proof of facet precision. And of course, the AGS Ideal addendum report demonstrates that the diamond has made it through the ray tracer with zero demerits. The computer generated ASET on the Ideal report also serves as validation of the actual ASET photo we provide.

The GIA grading report is also important for many people who consider them to be the ultimate arbiter of color and clarity.

All that said, we are happy to provide you technical details of the stone in the format and level of detail you are interested in seeing.

Thank you for your feedback. And thank you for your business!

 

[Tonks]

Hi @Tonks ,
I understand your feeling. The adjustment process to the new normal has been a bit of a challenge for all of us!

A few important things to keep in mind. First, we have not changed any of the cutting criteria for A CUT ABOVE. Second, you are correct that the advanced images we provide are visual proof of facet precision. And of course, the AGS Ideal addendum report demonstrates that the diamond has made it through the ray tracer with zero demerits. The computer generated ASET on the Ideal report also serves as validation of the actual ASET photo we provide.

The GIA grading report is also important for many people who consider them to be the ultimate arbiter of color and clarity.

All that said, we are happy to provide you technical details of the stone in the format and level of detail you are interested in seeing.

Thank you for your feedback. And thank you for your business!

I appreciate that, @Texas Leaguer ! I can’t say enough good things about WF at this point—y’all have been great. I’m working with Becca, and she is fabulous.