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Florecence causing white diamond?

Whiteflash, Victor Canera, Brian Gavin, Continental Diamond, JannPaul, and a few other PriceScope recommend sellers that sell/source super ideal cut diamonds will get you the absolute best optical performance possible for a Round Brilliant Cut diamond...and their upgrade programs have no to extremely minimal stipulations.
 
mayaINaU said:
And how close to 1.5 ct do you want to be? Would you go down to 1.3 for better specs? I’m going to ask @DejaWiz and @Kim N to help:)

Look at the recommended specs for ideal light return here and keep your selection within these parameters: https://www.pricescope.com/education/diamond-cut/diamond-proportions
Then run it through the HCA calculator on Pricescope. You can also search multiple vendors at once on Pricescope and select “excellent” HCA score and other specs via the detailed search.

I think Adiamor, Ritani, and James Allen would be within the right price range.
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I'm really set on it staying within the same mm or higher 7.37 by 7.33 is the current mm
 
oncrutchesrightnow said:
It’s a matter of taste but if you don’t like it now, you won’t like it more after the return period. Send it back — the kind people here will find you something pretty quickly.
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Good point thanks
 
What is your budget?
 
Report # or all the numbers off the report? please.
 
DejaWiz said:

GIA - Report Check

www.gia.edu www.gia.edu

Screenshot_20221231-204022-828.png
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Thanks.
The answer to the title question is that the cut is the vast majority of the problem with possibly some small localized effects of the strong blue and microinclusions.
In a better cut stone they would not be an issue.
The primary cut issue is it has little to no contrast unless very very extremely over obstructed.
 
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Karl_K said:
Thanks.
The answer to the title question is that the cut is the vast majority of the problem with possibly some small localized effects of the strong blue and microinclusions.
In a better cut stone they would not be an issue.
The primary cut issue is it has little to no contrast unless very very extremely over obstructed.
Click to expand...

How is this possible when it is rated as excellent ideal cut how do you make sure that doesn't happen again if the excellent isn't even excellent?
 
Around 10000 budget
 
I'm surprised to see fluorescence causing visible haziness in a VS diamond. I recall reading that strong or very strong fluor present alongside particular inclusion patterns, such as clouds and/or twinning wisps, is usually required for it to interfere with light play. Nevertheless, even if it's only 20% of the time, as you say, a diamond should never look milky. So I think you sense that something is off here, and I'm not sure the stone will ever satisfy you. Since you're still within the return period, I think now is the time to do something about it. There's a reason why most diamonds with strong or very strong (and even medium) fluor often have a dramatically lower price tag. It is a beautiful diamond otherwise, but this would be a deal-breaker for me. Good luck! And Happy Anniversary!!
 
Karl_K said:
Thanks.
The answer to the title question is that the cut is the vast majority of the problem with possibly some small localized effects of the strong blue and microinclusions.
In a better cut stone they would not be an issue.
The primary cut issue is it has little to no contrast unless very very extremely over obstructed.
Click to expand...

Enlightening! Thank you for explaining this!!
 
Tori canonne said:
How is this possible when it is rated as excellent ideal cut how do you make sure that doesn't happen again if the excellent isn't even excellent?
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The GIA top grade is excellent, ideal was AGS which is now a add on report to a GIA report. Confusing eh?
The GIA ex cut grade covers huge range of proportions, far to huge in many peoples opinion.
My opinion is it ranges from meh to meh with some great combos in there, the GIA EX grade just don't separate them out for you.
Beyond GIA EX there is the AGS0 cut grade, HCA scores, and various cheat sheets that vary a lot.
Beyond that is a combination of images and the above sorting tools, actual heart and arrow images and actual Ideal-scope or ASET images.
 
mayaINaU said:
I found this GIA article to be interesting:
“We observed that stronger fluorescence produces some contrast loss in gem diamonds. However, our results show that this contrast loss from strong fluorescence does not by itself cause the milky or hazy appearance observed in some diamonds by the trade. Atomic-scale defects in the diamond structure or nano-inclusions appear to be the main causes of the milky or hazy appearance. The occurrence of strong fluorescence in combination with these features may cause a diamond to appear even milkier or hazier, but we saw no evidence that strong fluorescence alone produces noticeable haziness in diamonds that did not already contain light-scattering structural defects or nano-inclusions.”
(https://www.gia.edu/gems-gemology/s...ts-of-blue-fluorescence-on-diamond-appearance).
I do think that if it bothers you, don’t feel bad about finding one you like better!
ETA, just read your note above. I think you absolutely can find a diamond that you love in all lighting conditions. So don’t settle. Let us know if you want suggestions.
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This is the article I was thinking of... thank you for sharing!
 
Autumn in New England said:
I'm surprised to see fluorescence causing visible haziness in a VS diamond. I recall reading that strong or very strong fluor present alongside particular inclusion patterns, such as clouds and/or twinning wisps, is usually required for it to interfere with light play. Nevertheless, even if it's only 20% of the time, as you say, a diamond should never look milky. So I think you sense that something is off here, and I'm not sure the stone will ever satisfy you. Since you're still within the return period, I think now is the time to do something about it. There's a reason why most diamonds with strong or very strong (and even medium) fluor often have a dramatically lower price tag. It is a beautiful diamond otherwise, but this would be a deal-breaker for me. Good luck! And Happy Anniversary!!
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Good way of putting it! I'm sad to say I have come to the conclusion to return
 
Karl_K said:
The GIA top grade is excellent, ideal was AGS which is now a add on report to a GIA report. Confusing eh?
The GIA ex cut grade covers huge range of proportions, far to huge in many peoples opinion.
My opinion is it ranges from meh to meh with some great combos in there, the GIA EX grade just don't separate them out for you.
Beyond GIA EX there is the AGS0 cut grade, HCA scores, and various cheat sheets that vary a lot.
Beyond that is a combination of images and the above sorting tools, actual heart and arrow images and actual Ideal-scope or ASET images.
Click to expand...

Ugg sounds so complicated, thank you for trying to explain!
 
I have seen GIA large flawless diamonds that have internal graining not noted on GIA reports that cause havoc with diamond transparency when seen in light with a near visible UV component (daylight through windows etc).
So a nice VS2 is quite commonly going to be hazy with Strong Blue.
It is also rare for many online vendors to report the truth told to them by the larger cutting manufacturers about haziness or internal graining and clouds. That can be ignorance on the staff side, lack of training, or a desire to sell sell sell.
 
Here is an example I found quickly on RapNet B2B trading platform. There is a high chance this stone will have slightly reduced transparency in many types of lighting:
1672546669753.png
See the lines of internal graining outlined in the black circle:
1672546727719.png
 
Garry H (Cut Nut) said:
Here is an example I found quickly on RapNet B2B trading platform. There is a high chance this stone will have slightly reduced transparency in many types of lighting:
1672546669753.png
See the lines of internal graining outlined in the black circle:
1672546727719.png
Click to expand...

Interesting! I wonder why the GIA doesn't see fit to notate this phenomena in the report comments? If a diamond exhibits haze due to imperfections in its structure, it's not flawless, IMO. But at the very least, they should mention the graining.
 
Autumn in New England said:
Interesting! I wonder why the GIA doesn't see fit to notate this phenomena in the report comments? If a diamond exhibits haze due to imperfections in its structure, it's not flawless, IMO. But at the very least, they should mention the graining.
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I only have theroies.
Partly because they use the wrong lighting and equipment. Partly because it's an IBM GIA AI project. Partly because high res videos made by stitching still photos together (that consumers are never shown) enable trade people to see better than GIA salaried staff.
Etc
 
Garry H (Cut Nut) said:
I only have theroies.
Partly because they use the wrong lighting and equipment. Partly because it's an IBM GIA AI project. Partly because high res videos made by stitching still photos together (that consumers are never shown) enable trade people to see better than GIA salaried staff.
Etc
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Which is precisely why this forum is both necessary and invaluable!
 
Great thread! I didn't see milkiness but noted the lack of contrast. I've seen buyers with their first super ideal troubled by contrast until they learn about it.
OP says she loves the diamond 80% of the time. If she would decide this is a "feature" of the diamond she can live with, I'd say keep it. But it sounds like it really bugs her, best to return it.
 
You'll be hard pressed to find
DejaWiz said:
Looks like it has a bit of symmetry wonkiness:

Screenshot_20230101-162553-212.png


The crown angle would be considered a bit steep for the 40.8° pavilion angle, 50% stars, and 75% lowers.

cutprofile.jpg
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Agreed.
 
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