diamond fluorescence - medium vs strong?

[nucleon]

Hi,

Rather than continuing with my previous thread on engagement diamond shopping, I thought I would start a new one on the question of fluorescence because it was pointed out to me that fluorescence can enhance the colour of diamond in the G-I range. There was even a article by GIA in 1997 that said stronger the fluorescence, the better the colour.

I came across this article online by Ira Weissman on truthaboutdiamonds (truthaboutdiamonds.com/truth-about/diamond-fluorescence/) that disagreed with the GIA article and recommended AGAINST a strong or very strong fluorescent diamond because they "usually appear hazy". BG has a line of blue diamonds which supposedly have passed their own inspection. The online images look fine to me but I am no expert. Now I don't know what to believe!

Any insight would be greatly appreciated! Thank you!

 

[JulieN]

It is very rare to find a hazy stone. I usually remind consumers to double check when the price seems especially good.

 

[tyty333]

Ditto JulieN...in all the time I have been on PS I can only remember one person that ordered a stone and it ended up
being hazy. Either the fluor isnt affecting the stone's apperance, or we (PSers/consumers) are asking the right questions
before the stone is ordered (thats the time to ask about strong fluor).

 

[Sparklelu]

BGD Blues are carefully inspected.
BTW, I have two stones that have Fluor -both old cuts and they have no haze at all

 

[diamondseeker2006]

I have a strong blue and it is great! I had Good Old Gold call it in and make sure that it had no negative effects. But especially in higher clarity stones, strong blue generally is not an issue. Stones that have low clarity and a lot of clouds might be different.

More accurate information here:

https://www.pricescope.com/wiki/diamonds/diamond-flourescence

 

[iheartscience]

I have a 2 carat L colored BGD Blue with medium fluoro and it faces up incredibly white. I was expecting more tint and would have been fine with it, but all I see is a white diamond. There is no haziness whatsoever.

 

[SMC]

Hi,

Rather than continuing with my previous thread on engagement diamond shopping, I thought I would start a new one on the question of fluorescence because it was pointed out to me that fluorescence can enhance the colour of diamond in the G-I range. There was even a article by GIA in 1997 that said stronger the fluorescence, the better the colour.

I came across this article online by Ira Weissman on truthaboutdiamonds (truthaboutdiamonds.com/truth-about/diamond-fluorescence/) that disagreed with the GIA article and recommended AGAINST a strong or very strong fluorescent diamond because they "usually appear hazy". BG has a line of blue diamonds which supposedly have passed their own inspection. The online images look fine to me but I am no expert. Now I don't know what to believe!

Any insight would be greatly appreciated! Thank you!

If you read Ira Weissman's review of BGD, he mentions how the BGD Blue Line has been verified to have no negative fluoro effects. I like fluoro in diamonds a lot and I seek it out. Most vendors will tell you whether or not the fluoro has a negative effect on the diamond if you ask. I know James Allen will. If you're unsure, just buy from a vendor with a good return policy!

 

[maccers]

I too have a strong blue diamond (and some phosphorescence) and zero haziness/milky-ness AND I love it. The colour is GIA I/J and it's super white.

 

[Fly Girl]

nucleon - You can be sure that a diamond in the BG Blue line will not be milky or hazy.

 

[nucleon]

Thanks for all of the replies!

With strong fluorescence, does the colours G vs H vs I make a big difference?

Thank you again!

 

[SMC]

Thanks for all of the replies!

With strong fluorescence, does the colours G vs H vs I make a big difference?

Thank you again!

The effect of fluoro is only observable in the presence of UV light (outdoors or under a black light). Indoor lighting doesn't normally have a UV component so fluoro won't help a diamond appear whiter indoors. I think you might be able to tell the difference between a G and an I but you may not tell the difference between a G and a H or a H and an I. You may have a different level of color sensitivity than I do though.

 

[ecf8503]

Thanks for all of the replies!

With strong fluorescence, does the colours G vs H vs I make a big difference?

Thank you again!

The effect of fluoro is only observable in the presence of UV light (outdoors or under a black light). Indoor lighting doesn't normally have a UV component so fluoro won't help a diamond appear whiter indoors. I think you might be able to tell the difference between a G and an I but you may not tell the difference between a G and a H or a H and an I. You may have a different level of color sensitivity than I do though.

2nd. And I have a D w/ SBF and I love it! I also have several G colors and an I-J antique, and since I am color sensitive, I can absolutely see the difference in color when I'm looking for it or when they are side by side. But honestly the G's face up nice and white. It's when I look at the I-J that I can see the tint more easily. And remember fluor only shows in UV light.

 

[diamondseeker2006]

Thanks for all of the replies!

With strong fluorescence, does the colours G vs H vs I make a big difference?

Thank you again!

The effect of fluoro is only observable in the presence of UV light (outdoors or under a black light). Indoor lighting doesn't normally have a UV component so fluoro won't help a diamond appear whiter indoors. I think you might be able to tell the difference between a G and an I but you may not tell the difference between a G and a H or a H and an I. You may have a different level of color sensitivity than I do though.

2nd. And I have a D w/ SBF and I love it! I also have several G colors and an I-J antique, and since I am color sensitive, I can absolutely see the difference in color when I'm looking for it or when they are side by side. But honestly the G's face up nice and white. It's when I look at the I-J that I can see the tint more easily. And remember fluor only shows in UV light.

Ditto..G is my preference and I can see the tint easily in low I and J.

 

[dw136905]

I am looking a 2.0 carat princess cut H color with a VS2 clarity. The fluorescence is listed as Strong on the GIA report but my question is whether a clarity grade of VS2 would eliminate any chance of haziness? I see everyone mentioning the color eliminating it but the clarity.

 

[John P]

I am looking a 2.0 carat princess cut H color with a VS2 clarity. The fluorescence is listed as Strong on the GIA report but my question is whether a clarity grade of VS2 would eliminate any chance of haziness? I see everyone mentioning the color eliminating it but the clarity.

No. When it occurs, "haziness" due to fluorescence is not identified in typical lab grading. While they really are rare they do happen. Manufacturers and/or sellers focused on consumer protection will eliminate such diamonds from their offerings.

 

[delight]

What kind of inclusions does the VS2 clarity grade has?