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Fluorescence?

blingmeupscotty

blingmeupscotty

Brilliant_Rock
Trade
Joined
Dec 12, 2016
Messages
960
Question please? I would have no idea how to answer this.

A friend of mine came over today. She brought a grandmothers diamond from a pendant once worn. She asked me to just look at it and guess what the item was worth. I'm not a jeweler I have no idea. But she knows I dabble in projects all the time, and her jeweler offered her $30 for the .25 carat stone. [We all know how that works...anyway]. When I went to UV test it I thought my eyes were playing tricks on me. I then went to a dark room and took off my own ring for comparison. My eyes weren't playing tricks on me, her diamond has a pink fluorescence! And it was strong. As in popping pink. She then asked, does that make it worth more? I did not have any idea how to answer her. The color of the stone is probably a J/K.
Thanks
 
I have not heard of any place where unusual fluorescence may get a premium ...

Why not list it for sale here with a fluorescence shot !
 
Wow! That’s gorgeous!
 
Oh, my! Amazing! Thank you for posting the picture.
 
That is beautiful!
 
Lovely. And I think the $30 offer is ridiculous if the diamond is reasonably well-cut. But, I suspect some of the diamond nerds here would buy it just for the pink fluorescence. I agree with PP to do some research to put a value on it and post here and on the LoupeTroop.

Here are a few comps, I can't see the faceting to guess on a cut.
https://www.etsy.com/listing/483545...89691c33413dabec1778cd7c3e61fc6d7bb:483545586

https://www.etsy.com/listing/386430...ch_query=0.25 diamond loose&ref=sr_gallery_27

https://www.etsy.com/listing/514257...ch_query=0.25 diamond loose&ref=sr_gallery_11
 
THAT strong ?

There is no doubt that this is a diamond, right ?

[The surveys of diam fluorescence I recall off the cuff do not mention pink - much that there isn't of it, but the possibility is documented rather grandly - www ]
 
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Ctd.

A nice survey of magenta dots in piles of diamonds under some UV source... which does seem to have a pink glow, but rather obviously different than the diamond-issued light that comes as dots rather than glowing over large sections of two of the pictures:

http://www.jsjgeology.net/Diamond.htm

-
Good luck !
 
Wow, do you have any photos of the faceting close up in regular lighting? What a beautiful pink...!
 
Thank you everyone for your input, Yes there is no question it's a diamond. Her jeweler checked it, I checked it [fwiw with my own testers]. And I asked her about the interaction with her jeweler. When I reviewed it under my microscope I told her there is a crack, she said "thats what he said too-he said he'd only give me $30 because of the crack in the diamond". But it's not something you can see without the magnification. Just had her outside. She has warmth for sure but faces up really white in certain lighting.

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007.JPG
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Having seen some totally wacko flouresence colors....can't recall seeing pink.
But......IMO this looks like a reflection from the UV light as opposed to a fluorescent glow.
It looks like the stone on the right is reacting slightly- maybe it's faint blue fluorescence- making the other look pinker.
 
I'm going to just take it into my jeweler and have him test it with his equipment. I do think David is onto something, although I can't get a clear shot without the pink now-it must be my UV flashlight. I'll keep everyone posted, thank you everyone!!
 
valeria101 said:
Ctd.

A nice survey of magenta dots in piles of diamonds under some UV source... which does seem to have a pink glow, but rather obviously different than the diamond-issued light that comes as dots rather than glowing over large sections of two of the pictures:

http://www.jsjgeology.net/Diamond.htm

-
Good luck !
Click to expand...

Cool pictures in that link, thank you for sharing!

Wink
 
@Wink , could still be what David says - I have already asked for a reality check
 
Rockdiamond said:
Having seen some totally wacko flouresence colors....can't recall seeing pink.
Click to expand...

This diamond does not fit the Type of the only 'pink-orange' fluorescent diamonds I am finding on record, now that I have checked the report:

WWW (pdf) Gaillou, Eloïse, and Jeffrey E. Post. "AN EXAMINATION OF THE NAPOLEON DIAMOND NECKLACE." Gems & Gemology 43.4 (2007).
 
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blingmeupscotty said:
I'm going to just take it into my jeweler and have him test it with his equipment. I do think David is onto something, although I can't get a clear shot without the pink now-it must be my UV flashlight. I'll keep everyone posted, thank you everyone!!
Click to expand...

Maybe try shining the light through the diamond from above but take the photo from the side, so there's no way the UV could be reflecting back at the camera?
 
Well, I just got back from the jeweler. I have two updates.
1. it was not a reflection. I handed the stone over to my guy, asked him to check the fluor., he walked in the back [mind you, I said nothing of the color or showed him the picture-I didn't want him skewing results] and came out and said "that's not blue" then grabbed another loop and said again.. "nope..that's faint pink..BUT.."

He then said there may be some kind of filling/enhancement and we wouldn't know for sure unless he was able to send it to the girl at the lab for grading and such. I said let's do it, send it off. When we get it back, we'll at least know if it's enhanced and what it's been treated with. On top of which, then it can be graded properly and she'll know what it can be sold for. I then showed him the photo. So.. we'll know what it is in about a week. Thank you everyone!
 
Filling or irradiation could certainly produce strange fluorescence.
I recall seeing GIA calling white and orange fluorescence besides blue.
But sometimes blue looks like white and vice versa. It's the toughest call.
 
So fluorescent fans, here is the update thus far [it has my jeweler humming the twilight zone]. Looked at by 3 different people. Pink seen twice, 0 fluorescence seen by the "guy". What kind of guy this was, I don't know. When I dropped off the diamond my jeweler specifically said "girl at the lab". When he emailed me to let me know it was ready for pickup, he said it was a "he" that inspected the diamond.

Yes it has a crack
No it does not have any enhancements
Its .36 in size

That's all I've gotten out of him so far, because I haven't picked it up yet. My girlfriend and I had a huge laugh over all of it. She calls me a dog with a bone. She brought me the diamond to sell, but you can't sell it if you really don't know what it is. IF there is something unique about it, then I certainly need to know. Most likely, if GIA tells me what I need to know-that they will identify the color of the fluorescence [if any], then I'll be sending it off. Quite the scavenger hunt for a baby .36 isn't it? LOL...

Cheers!
 
What an interesting project you began. That is a cool color under the UV light.
 
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