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Stone with Phosphorescence

Thanks for the info.

Always interested in learning more about this phenomenon.

Still on the hunt!
 
evergreen|1363056943|3402578 said:
I'm a sciencey person and -- thanks to this thread -- checked my e-ring stone for phosphorescence. It's no Christina-strength, but it does have some! My diamond has SBF and pretty weak orange(?) phosphorescence; it's almost so dim you have to see it with your peripheral vision, which is tough to use for color perception. Anyway, see the photo montage: light (ignore faded black sock on which the ring rests), little LED UV light, and then the bottom two images are varying levels of Photoshop. I could see the orange phosphorescence on my camera's screen, but not once I downloaded it to my laptop. The second (probably almost all black-looking) photo is unadjusted and not cropped.

Has anyone found a diamond with SBF/VSBF that doesn't have phosphorescence? I wonder if it's just part of having strong fluor.
Click to expand...

I just checked my fiance's ring and it also has weak orange phosphorescence, and looks almost exactly like this.

It has medium blue fluorescence.

I'm thinking that this phenomenon is a lot more common that we suspect, but it requires a very dark room and a strong LED source to "charge" the stone. I used an LED flashlight.
 
Deucer|1363651625|3408192 said:
evergreen|1363056943|3402578 said:
I'm a sciencey person and -- thanks to this thread -- checked my e-ring stone for phosphorescence. It's no Christina-strength, but it does have some! My diamond has SBF and pretty weak orange(?) phosphorescence; it's almost so dim you have to see it with your peripheral vision, which is tough to use for color perception. Anyway, see the photo montage: light (ignore faded black sock on which the ring rests), little LED UV light, and then the bottom two images are varying levels of Photoshop. I could see the orange phosphorescence on my camera's screen, but not once I downloaded it to my laptop. The second (probably almost all black-looking) photo is unadjusted and not cropped.

Has anyone found a diamond with SBF/VSBF that doesn't have phosphorescence? I wonder if it's just part of having strong fluor.
Click to expand...

I just checked my fiance's ring and it also has weak orange phosphorescence, and looks almost exactly like this.

It has medium blue fluorescence.

I'm thinking that this phenomenon is a lot more common that we suspect, but it requires a very dark room and a strong LED source to "charge" the stone. I used an LED flashlight.
Click to expand...

Very cool.

I'd love to find out how many people have stones with fluor, and how many of those exhibit phosphorescence. I don't mean to sound ignorant, but I just have no clue.

Anyone else?!
 
Oh wow! My stone has strong blue fluorescence and I have never checked it for phosphorescence! Be right back!

:eek: Mine does it, too!!!!! Oh my goodness. It glows for awhile after having the UV light shining directly on it. I had to close my eyes so they'd adjust to the dark and then I turned off the UV light, and there it was! I wouldn't say it was exactly orange. I thought that maybe for a second, but then it just glowed mostly a bluish or greenish white. I'll have to try it again and decide about the color.

I am planning on upgrading my diamond anytime now, and I will have to have another with SBF!!!
 
What size and price range diamond are you looking for Rocky?
 
diamondseeker2006|1363666471|3408394 said:
Oh wow! My stone has strong blue fluorescence and I have never checked it for phosphorescence! Be right back!

:eek: Mine does it, too!!!!! Oh my goodness. It glows for awhile after having the UV light shining directly on it. I had to close my eyes so they'd adjust to the dark and then I turned off the UV light, and there it was! I wouldn't say it was exactly orange. I thought that maybe for a second, but then it just glowed mostly a bluish or greenish white. I'll have to try it again and decide about the color.

I am planning on upgrading my diamond anytime now, and I will have to have another with SBF!!!
Click to expand...

VERY cool. What an awesome discovery to make. Makes a special stone even more so!

Jon at GOG is currently helping me try to find a good fit (I really would prefer a stone with confirmed phosphorescence).

I'm looking for something for a bezel pendant, along these lines:
.5 - .65 ct.
F-H
VS1-SI1 (eye clean from 8")
AGS0/GIA XXX
Very strong or Strong blue fluor
 
So BD doesn't seem to have any that fit your specs unless you could go to .7 I VS. That probably is going to be your best bet because not many SB stones are going to be ideal cut.
 
diamondseeker2006|1363704345|3408585 said:
So BD doesn't seem to have any that fit your specs unless you could go to .7 I VS. That probably is going to be your best bet because not many SB stones are going to be ideal cut.
Click to expand...

Thanks for the insight!

I have about 7 months before I need to purchase the stone, so I am hoping the right fit comes along. I will let you know how the hunt is coming!
 
Anyone else interested in testing their stone with fluorescence?

I believe you would need to follow these steps (someone correct me, if I'm wrong):
1. Find a dark room
2. Expose diamond with fluorescence to UV longwave (blacklight) for a period of several minutes
- keep eyes closed during this time
3. Turn off UV light
4. Open eyes
5. Observe!

Love to get some more data on just how common this phenomenon is!
 
RockyRacoon|1363729779|3408984 said:
Anyone else interested in testing their stone with fluorescence?

I believe you would need to follow these steps (someone correct me, if I'm wrong):
1. Find a dark room
2. Expose diamond with fluorescence to UV longwave (blacklight) for a period of several minutes
- keep eyes closed during this time
3. Turn off UV light
4. Open eyes
5. Observe!

Love to get some more data on just how common this phenomenon is!
Click to expand...

That's the procedure I used, the only thing I'd say is it shouldn't take several minutes. 60 seconds should be plenty.
 
Mine actually appeared orange for a second and then changed to a more blue or greenish white. It was pretty amazing!
 
diamondseeker2006|1363795334|3409594 said:
Mine actually appeared orange for a second and then changed to a more blue or greenish white. It was pretty amazing!
Click to expand...

That's some amazing science right there! AWESOME
 
evergreen|1363056943|3402578 said:
I'm a sciencey person and -- thanks to this thread -- checked my e-ring stone for phosphorescence. It's no Christina-strength, but it does have some! My diamond has SBF and pretty weak orange(?) phosphorescence.

Has anyone found a diamond with SBF/VSBF that doesn't have phosphorescence? I wonder if it's just part of having strong fluor.
Click to expand...

Just wanted to update this thread, as I have been looking at Strong / Very Strong blue fluor stones.

Less than 1 in 10 of the stones I tested exhibited phosphorescence. This may just be a result of an extremely small sample size, but I can definitely say that many Strong / Very Strong fluor stones do not exhibit phosphorescence.

This may have been evident to everyone, but I just wanted to confirm that a stone can have very strong fluor, but no phosphorescence.

Any other info related to this topic is appreciated!
 
Rocky, I'd have to say a sample size that let you determine "less than 1 in 10" have phosphorescence is, in fact, a very GOOD sample size for SBF/VSBF stones! :appl: Sounds like, from your own description of your methodology, you did everything you could to see even weak phosphorescence; that's all very interesting data. I guess I'm luckier than I thought to have some phosphorescence.

Anything you have found, in your experience, that increases the likelihood of phosphorescence, if fluorescence strength doesn't correlate? High vs low color? Clouds? (I don't know what clouds are made of, maybe they phosphoresce!) Any non-fluorescent stones that do phosphoresce?

I will try to check my lame strong yellow fluor diamond for phosphorescence later today. Have you looked at any stones that have non-blue fluorescence?
 
evergreen|1388183954|3581509 said:
Anything you have found, in your experience, that increases the likelihood of phosphorescence, if fluorescence strength doesn't correlate? High vs low color? Clouds? (I don't know what clouds are made of, maybe they phosphoresce!) Any non-fluorescent stones that do phosphoresce?

I will try to check my lame strong yellow fluor diamond for phosphorescence later today. Have you looked at any stones that have non-blue fluorescence?
Click to expand...

I've only found phosphorescence in stones with strong / very strong fluor. It's possible that this exists with faint/medium stones, as well, but this was not borne out, in my very limited experience. I also have not seen phosphorescence in stones without fluor.

evergreen - I'd love to find out more about the strong yellow fluor! Out of the stones I examined, only one had yellow fluor, and it would have been probably been classified as faint/medium. This particular stone did not exhibit phosphorescence. I have not been able to check any stones that possess colors of fluor other than blue and yellow, though I would be eager to do so!

Gaining more info from folks who possess stones with fluor is also great, so we can all learn more about this phenomenon, and gain a deeper understanding of how fluorescence/phosphorescence are connected.
 
thanks for bumping/updating this thread with your findings. Interesting about phosphorescence. Learn something new everyday.
 
Nope, the yellow fluor diamond doesn't phosphoresce... or, well, it's SO FAINT that I can't make out a color and can barely even see it even after "charging" with the UV light for a few minutes. I guess in this case it's proportional to the degree of fluorescence, making my decision to send it back easier and easier. :)
 
I received the completed halo pendant I had ordered from BGD.

The center stone has Strong Blue fluor ( http://www.briangavindiamonds.com/diamonds/diamond-details/0.568-h-si1-round-diamond-ags-bl-104067973031 )

I am pleased to say that the stone DOES exhibit phosphorescence! The color is yellow-orange, fading to white/blue. The phenomenon lasts for about 30 seconds after the black light has been turned off.

I tried to capture some photos last night, but was unable to do so. I will try again tonight!

Needless to say - AWESOME.
 
This is my stone: http://goodoldgold.com/diamond/6002

I used this UV light: http://www.gouletpens.com/Noodlers_LED_Blacklights_p/noodlersled.htm

30 seconds of UV exposure = 25 - 30 seconds of orange phosphorescence.

One of the main things I really wanted in my diamond when we bought was fluoro, as I live in Texas and was really excited about seeing the blue occasionally in our hot summer sun. Now I'm delighted to discover that it has orange phosphorescence, too - another fun little surprise about it!

Thanks for bumping this thread. This brought a little fun into my afternoon!

(Loosely related note: that site with the link to the UV light also sells some really cool invisible ink that is designed for use with the light - my kids and my best friend and I have fun writing each other notes with it.)
 
MonkeysInk|1391122087|3604455 said:
This is my stone: http://goodoldgold.com/diamond/6002

I used this UV light: http://www.gouletpens.com/Noodlers_LED_Blacklights_p/noodlersled.htm

30 seconds of UV exposure = 25 - 30 seconds of orange phosphorescence.

One of the main things I really wanted in my diamond when we bought was fluoro, as I live in Texas and was really excited about seeing the blue occasionally in our hot summer sun. Now I'm delighted to discover that it has orange phosphorescence, too - another fun little surprise about it!

Thanks for bumping this thread. This brought a little fun into my afternoon!

(Loosely related note: that site with the link to the UV light also sells some really cool invisible ink that is designed for use with the light - my kids and my best friend and I have fun writing each other notes with it.)
Click to expand...

That is a really awesome stone.

Only made more awesome by the fluor and phosphorescence! Orange phosphorescence only adds to the uniqueness.

You picked a winner.
 
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