My G diamond with medium yellow fluorescence

[Boherb]

I have been looking for a diamond, and coincidentally have come into possesion of one (long story). A Picture (best I could do) is attached. While it is not what I am looking for, its very nice. I am thinking of keeping it, or selling it to raise money for something I really want.

1. I have not had it looked at in an idealscope or Hearts and arrows detector (names?) as mentioned on these boards. But, it looks really nice to me, and the angles shown on the certificate look excelllent compared to the AGA guidelines. They are
table 58, depth 61.3, crown angle 34.5, crown height 14.5, pav angle 40.8, pav depth 43. No culet, medium to slight thick girdle, and GIA Ex cut, polish, symmetry.

It is 2.07 carat, G, SI1. I can not see any flaws with my own eye, but I took it to a jeweler and was able to see a black speck almost dead center in the middle top view. Absolutely cannot see it without the magifier. In the photo, I can suddenly see it again. Is this just because its shown large, or does a picture somehow remove all the light interference that to me makes it hard to see anything that small in a diamond.

Here is the kicker. It is marked as "medium yellow" under fluorescence. To me, it looked just like the other G rated GIA diamonds at the jewelery, but under his little light in glowed a yellow/apple green. I thought it was pretty cool.

Question 1: I cant see the effects of the fluoro in office or sun light. Is that possible, or am I just not perceptive? If better pictures are needed, I can try to take them (any guidance on how to set it up right is appreciated).

Question 2: Is there a place to sell this diamond? I think it is very pretty, but it is not what I want. On the other hand, I am guessing everyone who might buy it will say "sorry, no yellow fluoroscence for me, please"? I would like to find a place where it might actually be appreciated for what it is instead of considered a terrible flaw, but maybe that is naive. Any thoughts?

Any other information about the diamond, or what makes the yellow effect bad (even if unseen) would really be appreciated. Thank you!

 

[Lorelei]

Hi Boherb

Just curious, did you buy it from one of the vendors here? It appears to be a well cut stone with good proportions, however to the best of my knowledge according to an expert, the yellow fluorescence does make it more undesirable for sale rather than one without. You could try selling it on consignment or by other methods to see if you get any takers but generally it is usual to expect back 30 - 50% of what you paid and with yellow fluorescence probably even less than that if you could get a buyer. Fluorescence can also be subtle, some expect almost a nucleur glow coming from a fluorescent diamond with a little bit of light, but it can be rather more subtle than that unless under blacklighting etc. So if you can't discern it personally I wouldn't worry too much.

 

[stone-cold11]

Sound like a well cut and unique stone. Too bad that it will sell for much lower than even comparable stones in the resale market because of the yellow fluor. Nothing wrong with it, just the trade discount it.

 

[glitterata]

It seems unfair to fault the poor little thing for some unnoticeable yellow fluorescence, but that''s how things are. People are scared of fluorescence, and yellow is especially scary because people imagine it will make their diamond look yellower.

It wouldn''t bother me--in fact, I would find it an appealing quality--but it will make your diamond harder to sell.

 

[kenny]

Well if the yellow fluorescence lowers the price you get for it, it also lowered the price you paid for it.
It may take longer to sell, but I imagine that it took the previous seller longer to find a buyer too.

So you could say it's a wash.

Personally you stand to loose so much money selling it, and you say you cannot detect the fluorescence yourself, that I'd just keep it.

 

[Boherb]

Thanks all!

Probably a really silly question, as I am sure my response would be "not enough information", but any ideas at all on what I should have paid??

If you assume my description (G color, eye clean SI1, no detectable fluoro) to be accurate? I got it by a non-traditional means, you might say (nothing bad!!). I am happy to say what I paid, I just did not want to bias any estimates.

Also, I take it there is really no good place for an individual to try to sell a diamond?

Thanks for all your help!

 

[stone-cold11]

Can't really say as I do not know how much more discounted a yellow fluor gets, but I would guess less than 17k.

Not really as noted above, you will be lucky to get back 50% of the 17k, probably lower given that it has medium yellow fluor. I am also guessing it could have a better color grade given that GIA lighting contains UV.

 

[FB.]

Yellow fluorescence is certainly a detterent to many buyers, even more so that blue fluorescence, which most people are deterred from buying by horror stories that only apply to a few abnormal stones.
However, if I was mounting a diamond in yellow gold (which I prefer for H-J colour tinted stones), having up to medium yellow fluor would probably not put me off if the cut was excellent - as yours is.
Having personal experience with some VS Blue fluor stones, I'd say that the fluor probably won't be more than a slight hint in most indoor lighting conditions (and most people spend most of their life indoors), but in strong North-facing daylight or direct sunlight, the fluorescence will be moderately noticeable and the apparent colour grade will appear lower.
On balance, I'd expect it to sell for the same as an equivalent size and clarity H-colour stone, to compensate buyers for the unusual effect of the yellow fluor.

 

[Boherb]

So, Stone,

You are saying that the GIA color of G, incorporates whatever effect the yellow fluoro is having on the diamond? In other words, if somehow the fluoro could be removed, it might be an F? That actually answers one of my questions, which was why it looks like all the other Gs when I put them side to side in the jewelry store.

I paid $13K.

Thanks,

 

[FB.]

Date: 10/31/2009 3:29:56 PM
Author: Boherb
So, Stone,

You are saying that the GIA color of G, incorporates whatever effect the yellow fluoro is having on the diamond? In other words, if somehow the fluoro could be removed, it might be an F? That actually answers one of my questions, which was why it looks like all the other Gs when I put them side to side in the jewelry store.

I paid $13K.

Thanks,

The GIA grading lamps are claimed to emit a small amount of UV, which can slightly activate the stone's fluorescence - but is more likely to have an effect when the fluor is strong or very strong.
It is quite possible that this stone is actually an F and that the fluor has tinted it towards G. But it is also possible that the amount of UV emitted by the grading lamp and the amount of fluor resutling in the stone was insufficient to move it out of the correct colour grade.

Some people argue that UV-free lighting should be used for grading. But others aregue that our household and workplace lighting emits similar amounts of UV to the grading lamps and therefore it doesn't matter in the real world.

 

[Lorelei]

Boherb, anything we tell you about the fluorescence and its effects, what you should have paid and can expect to get back is really speculation, what I would suggest if you are unsure is to get an independant appraiser to look at the diamond and advise,

here is the appraiser tool.