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Old Cassandra
 
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Quote this post and reply to it Post#1 @ 10-03-03 , 08:29 AM


Neat read.

http://www.cnn.com/2003/TRAVEL/10/0...d.ap/index.html

One little exerp from the article,

Quote:
Mysterious glow
For the testing it was taken to a museum laboratory, reachable down winding corridors and through three locked doors. It was only the second time in 20 years the Hope has been removed from its necklace setting, where it is surrounded by bright clear diamonds that intensify its blue color.

National Gem Collection Curator Jeffrey Post ordered the lights turned off and focused an ultraviolet beam on the Hope Diamond. Then he switched off the beam and, in pitch dark, the diamond glowed bright orange-amber.

It's that strong color, which lasts for several seconds after the diamond is exposed to ultraviolet light, that intrigues scientists. What causes the gem to fluoresce remains a mystery. Post speculates it's related to chemical impurities that give it that blue color.


I found my little ring the other day that had the severe fluorescense to it. That particular stone will glow a good 25 seconds after the black light is turned off. My other little stones will glow for maybe 8-10 seconds. Here's the old thread where I did some comparrison pics with different rings. http://www.diamondring.com/forums/s...ead.php?t=26376

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Quote this post and reply to it Post#2 @ 10-03-03 , 10:05 AM


I read this article too. Thanks for sharing it with everyone Cass.

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Quote this post and reply to it Post#3 @ 10-03-03 , 10:32 AM


Maybe it's the "glow" of Marie Antoinette...


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OK, I'm confused...
Quote this post and reply to it Post#4 @ 10-03-03 , 10:37 PM


the article describes the phosphorescence (the afterglow) of the Hope (long known) but goes on to talk about the fluorescence - surely they know the difference!?


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Quote this post and reply to it Post#5 @ 10-03-03 , 11:03 PM


I don't know. When I saw it last June in DC the sign said it was "flawless" which it is not. I was fascinated more by the history than the stone; it was something that Marie Antoinette had around her neck. Not the LAST item on her neck, but one of them.


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I guess
Quote this post and reply to it Post#6 @ 10-03-03 , 11:08 PM


the last thing Marie A. had around her neck was cold, hard steel - but only briefly!


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