I'm sure I could Google this but I'm a bit lazy right now and I've been thinking about this for a while.

A few weeks ago my family and I were enjoying a wonderful vacation at the House of the Mouse aka Walt Disney World.   As I was riding the Pooh ride, I noticed something odd about my Sunny.  Now this is one of those black light intense rides.  Very cute and of course my nearly 3.5 year old son loved it. 

Now before I go on, I love fluor in stones.  I'd be thrilled if every single one of mine had some level of fluor.  Admittedly when I bought Sunny she came with a GIA color report only (good enough for me) and I never bothered to ask.  I never noticed much color change when I went outside, though many times she would look more vibrant.

So when I rode this ride, Sunny would start glowing faintly... but noticeably yellow.  My other stronger fluor stones would light up a lighter shade of blue and then the ones that were more or less inert would just sparkle brightly.

The question... do different black lights/UV lights create a different look in diamonds?  I've looked at Sunny via UV light but could never see any real blue fluor.  Now I wonder does she ever so faintly have a different color?  Or is this an odd trick of the eye with the black light.

I rode this particular ride twice and she glowed twice, so it made me wonder.

Thanks for the handy homemaker tip, DAF!  I never thought of using black light to find kitty 'accidents'.  How cool.

Aside from the different external light sources, remember that fluorescence in diamonds may be present in any one of several different hues as well as intensities. Sunny would look one way fluorescing medium yellow, and Sunny might look quite another way fluorescing faint blue...

Trink I am aware that diamonds do fluor in all kinds of colors, but that blue is rather common.  In my brain I assumed if she did have flour it would be blue.  But if she has a little yellow instead it would explain why she always looks more yellow once in the sun.

I never asked about it as fluor isn't a deal breaker for me ever.  I like it honestly but if a stone has it or not, I won't turn it down if I otherwise love it.

OMC clear as mud yep  but I was wondering if they do flour at different wavelengths.  On this ride I did notice the blues were not quite as strong color of blue as my UV pen, but they were much more noticeable as a fluor stone.  Some of our clothes showed blotches from where the color was not even.  We can't see it with our eye, but in the black light it is noticeable.  I m sure protein would show up big time there too LOL.

Today is dreary so I might look t Sunny and a few other stones I have again just to see if I can tell more.  I loved seeing Sunny glow.  I do notice what you see as well sometimes OMC, the color of the UV light can make the fluor look like a different color.

This really fascinates me and i am so glad I noticed it on the ride.  

Now I wonder if I could find out what kid of black lights they use on the ride to compare with.  I don't have the info on my pen, but I m sure I could find it to compare.

Really dumb question now.  Is it common to have diamonds do different colors depending on the wave length?  Or is that more rare?

I've read up a lot on diamonds and tried to learn but I fully admit fluor was always the least talked about subject.

Thanks!  Like I said I was curious but too lazy to research right now.  I figured someone here knew more than me.  Of course the sun came out but I can always go into my walk in closet that is dark to see.  I don't know why but I never really looked at Sunny all that close.  Particularly after I found a few of my stones had medium to strong looking blue fluor.

Someone did claim that rides at Disneyland run at 365nm wavelength so maybe Walt Disney World is similar.  My pen light I can't find information on and my flashlight supposedly runs at about 395-405nm (that one sucks though)