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AGS fluorescence: negligible… but I see bright blue?

Muluver said:
Yes, they do… once again, very frustrating because the glow stays a lot longer to my eyes than what the camera can capture but I just took this video thinking it may be easier to see.

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So is one more yellow and the other more white? Thank you for making a video!
 
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nojs said:
So it one more yellow and the other more white? Thank you for making a video!
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Yes, I edited my post to add that I think the GIA N Faint is more yellow BECAUSE it’s an N… all guesses honestly LOL
 
nojs said:
I meant the letter (D-Z). Because I was thinking if nitrogen is causing fluorescence (I read this from internet but I’m not sure if it is true) shouldn’t lower letters fluorescence more. Yet this doesn’t seem to be the case.
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No, it is about the way the nitrogen exists in a diamond.
All type I diamonds have nitrogen (its the definition).
What causes blue fluorescence is when the nitrogen have wiggled their way through the carbon to hold hands (electrons) with two others forming N3 clusters. This happens gradually over millions of years in about 1/3rd of diamonds (but new diamonds like LGDs have disseminated nitrogen).
 
Garry H (Cut Nut) said:
No, it is about the way the nitrogen exists in a diamond.
All type I diamonds have nitrogen (its the definition).
What causes blue fluorescence is when the nitrogen have wiggled their way through the carbon to hold hands (electrons) with two others forming N3 clusters. This happens gradually over millions of years in about 1/3rd of diamonds (but new diamonds like LGDs have disseminated nitrogen).
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Thank you Garry! This is why I love pricescope :) It has great curious individuals such as @Muluver, whose thread was really inspiring, and true experts in the field such as Garry and @Karl_K who have been patient and kind to answer these questions. Thank you so much!
 
nojs said:
Thank you Garry! This is why I love pricescope :) It has great curious individuals such as @Muluver, whose thread was really inspiring, and true experts in the field such as Garry and @Karl_K who have been patient and kind to answer these questions. Thank you so much!
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We need enquiring questions to be at our bestest
Thank you :-)
 
nojs said:
Thank you Garry! This is why I love pricescope :) It has great curious individuals such as @Muluver, whose thread was really inspiring, and true experts in the field such as Garry and @Karl_K who have been patient and kind to answer these questions. Thank you so much!
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Agreed! I wish we could all huddle together in darkness with our diamonds and UV lights comparing…. Sorry that kind of sounds weird now that I am reading that back to myself…
 
I’m still curious if the experts have more knowledge or links to studies/info on phosphorescence (@Garry H (Cut Nut) @Karl_K). I read from the internet that phosphorescence is very rare (this site claims only 0.01% of stones have it: https://www.finnies.com/blog/diamonds-fluorescent-phosphorescent-matter/ - yet in the light of my and @Muluver ’s little experiments that figure seems unlikely).

I’m especially interested in the link between the properties of the diamond and the color of phosphorescence (do lower letters exhibit more yellow/orange?).
 
@nojs it changes over time in my opinion, the sources of diamonds is very diverse these days and each has its own set of conditions then you just get oddballs. But is that oddball 1 of 1 or 1 of 100000?
I do not believe that only 2% or less are strong or more and I dont believe the .01% number.
Also the 25% number is likely not accurate either, it is likely low.
Any number I could give you would just be a wild guess.
 
nojs said:
I’m especially interested in the link between the properties of the diamond and the color of phosphorescence (do lower letters exhibit more yellow/orange?).
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I have no idea and know of no study on it, but its a very interesting question.
 
@nojs you may find this interesting as I do… I also acquired an eternity band since my old thread. Every single stone on that band has fluor. All have blue fluor EXCEPT for 2. One seems to have orange fluor and the other seems to have pink/purple fluor.

Here are the pics… all of the blue ones also seem to have orange phosphorescence but the orange fluor one seems to have no phosphorescence and the pink/purple fluor one seems to have a tiny bit?

634B98B8-734A-407F-B869-255290FE768F.jpeg
 
Muluver said:
@nojs you may find this interesting as I do… I also acquired an eternity band since my old thread. Every single stone on that band has fluor. All have blue fluor EXCEPT for 2. One seems to have orange fluor and the other seems to have pink/purple fluor.

Here are the pics… all of the blue ones also seem to have orange phosphorescence but the orange fluor one seems to have no phosphorescence and the pink/purple fluor one seems to have a tiny bit?

634B98B8-734A-407F-B869-255290FE768F.jpeg
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You have the coolest piece! That is incredible! I love that effect, it is so cool :kiss2:
 
I would love to drop my day job right now and make a study on the phosphorescence of diamonds. I wound make two study hypothesis:
- what ever causes blue fluorescence also causes phosphorescence
- lower alphabets have more yellow / orange phosphorescence

:)
 
nojs said:
I would love to drop my day job right now and make a study on the phosphorescence of diamonds. I wound make two study hypothesis:
- what ever causes blue fluorescence also causes phosphorescence
- lower alphabets have more yellow / orange phosphorescence

:)
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it is true that colored diamonds fluoresce more often - but rarely blue (except of course yellow diamonds)
 
Muluver said:
@nojs you may find this interesting as I do… I also acquired an eternity band since my old thread. Every single stone on that band has fluor. All have blue fluor EXCEPT for 2. One seems to have orange fluor and the other seems to have pink/purple fluor.

Here are the pics… all of the blue ones also seem to have orange phosphorescence but the orange fluor one seems to have no phosphorescence and the pink/purple fluor one seems to have a tiny bit?

634B98B8-734A-407F-B869-255290FE768F.jpeg
Click to expand...
Do you hapen to have a picture of this in regular light?
 
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I found an old thread:

Found A Phosphorescent Diamond, Help!

Greetings Expert Price-Scopers ; This evening I discovered a Diamond I own is not only Fluorescent but also Phosphorescent - It glows bright Yellow for around 5 seconds than fades to a chalky white colour (still illuminated) for around 10 seconds. I'd love to know any more info on...
www.pricescope.com

In that thread there was this link:
https://instagr.am/p/B4sDnWflc70/
In that picture there are colourless (!) lab diamonds that have phosphorescence. If white lab diamonds cannot have blue fluorescence, how can they phosphorescence? I’m puzzled :-o
 
nojs said:
I found an old thread:

Found A Phosphorescent Diamond, Help!

Greetings Expert Price-Scopers ; This evening I discovered a Diamond I own is not only Fluorescent but also Phosphorescent - It glows bright Yellow for around 5 seconds than fades to a chalky white colour (still illuminated) for around 10 seconds. I'd love to know any more info on...
www.pricescope.com

In that thread there was this link:
https://instagr.am/p/B4sDnWflc70/
In that picture there are colourless (!) lab diamonds that have phosphorescence. If white lab diamonds cannot have blue fluorescence, how can they phosphorescence? I’m puzzled :-o
Click to expand...

It is complicated. If I can I will make a video of a chart tomorrow
 
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