Opinions on Strong Florescence

[TXJewel]

First, I'm a total newbie at posting, but have lurked on these boards for a couple of years and have enjoyed this forum tremendously. Like many others here, I love the old cut stones although marquise's rather than oec's or omc's (but wouldn't pass on those either ). Was really excited that I had found one in it's original art deco setting, but then asked to see a copy of the GIA report. This stone is K colored with vs2 clarity, and it has Strong Yellow Florescence. I found an article on here that advises not to buy stones with this color florescence. I suppose I'm questioning this simply because it is an antique marquise. I like "ivory" color, or "antique lace", but something tells me it would be much different than that. Would like to have your opinions and thoughts on this. Even better if someone has seen a stone IRL with strong yellow florescence and could share their thoughts. Thanks in advance.

 

[Gypsy]

This is for YOU right, not for someone else? It would have a coolness factor and it's an old cut. Can you see it before you buy it? Or is there at least a good return policy?

 

[milton333]

Are you buying this for yourself, or as a surprise or gift for someone else?

You know that yellow fluorescence would tend to exacerbate the tint in the stone when the fluor is visible. A couple of things. You need long-wave UV light to bring out fluor. This includes a blacklight, and sunlight to some degree (though this can depend on your latitude, how sunny it is). The thing about grades of fluor is that there tends to be a lot of variability in what is considered "strong" fluor, which may depend upon the lighting environment in which it is graded and the subjective impression of the person doing the grading. If you search for info on strong blue flour, you'll see that some people report seeing a "blue glow" in sunlight, whereas others notice a very faint lavenderish tint, while others own stones with SBF for years without ever seeing any blue.

So, can you see your stone in person? Take it into sunlight, office light, incandescent light? See how it looks? If the stone is for you, are you comfortable with some warmth? Certainly, many on here have antique stones lower in color than K, and you'd likely get a similar effect from the yellow fluor in lighting that activates the fluor. Only you can evaluate whether that's troubling to you. And because there's no set answer on how strong yellow fluor will look, it's really not possible to give you advice that would be better than your own eyes.

As I'm sure you're aware, yellow fluor will make it more challenging to re-sell the stone, but if you think this is the one for you, that may not be a consideration.

Also, I'd love to see a pic, sounds like a ring with personality.

 

[Fly Girl]

Several of the light yellow sidestones in my diamond ring have strong yellow, green, white and orange florescence. They turn all sorts of interesting colors in the sun. It really depends on the stone. It also depends on what you are looking for. I think they recommend against strong yellow fluorencence because the diamond may not look all that white at times. But, it depends on the wavelength that brings out the fluor in that particular diamond, and that can vary, so you may not notice much at all.

Personally I think fluor is cool, so I don't stress about my graduated light yellow sidestones doing this in the sun.

 

[diamondseeker2006]

Wow, I think that would be very cool! It would not stop me for a second from at least looking at it. I have a stone with strong blue but a K with yellow fluoro would be very interesting! The cut of the stone and how it looks normally would be the determining factors for me. The syf would be a bonus!