Very strong flouresence in a lower colored stone?

[beaujolais]

How does very strong blue fluorescence work in a lower colored stone (last half of the alphabet)?

In outdoor/UV light does it show as blue or does it just cancel the yellow/brown/grey and make the stone appear white but not bluish?

Tx so much !

 

[natascha]

I don't know the lower half of the alphabet but I have had a M/N strong blue (although it faced up white unless you compared it to a colorless). When in the sun it would have that glowy bluish tint .

What are you planning? Inquiring minds want to know

 

[Rockdiamond]

That's a great question Sonoma,
Like many other questions about fluorescence, the answer is not a simple one – or that is to say it will vary from stone to stone.
One thing to consider, is the source of the color. Some warmer diamonds lean towards Brown while other warmer diamonds lean towards yellow.
I find more brown diamonds more commonly have a white fluorescence and yellow diamonds are prone to blue fluorescence.
Most commonly seen on the New York market is blue fluorescence in a faint yellow diamond.
Stones like this will have a true chameleon personality. Indoors where there is not a lot of UV light, O-P, Q-R, S-T, and darker stones will look pretty yellow. Put florescent stones of these colors outdoors in the sun, and they tend to look very white.

In the case of Brown diamonds, the white fluorescence can make them look a bit dull in direct sunlight. I have seen cases of great-looking deep brown diamonds that did get a little hazy in sunlight- yet the color was so strong that you would put up with it. Plus, they are priced very low.

Generally speaking if were talking very faint brown, the fluorescence will never be an issue.
Hope this helps!

 

[beaujolais]

it will vary from stone to stone.

Thanks so very, very much, Dave !

So, while it varies from stone to stone - still, probably if I want one to have that slight blue in daylight, I might not be able to go with a lower color as It seems the yellow of the lower color diamonds would cover up the bluish tint. (Or could that give you a greenish color outside?)

lower color in daylight = looks less yellow
higher color in daylight = possibly may go bluish

Did I get that right?

 

[Enerchi]

Sonomacounty Did you end up purchasing a diamond with SB fluorescence??? Any pics???

 

[beaujolais]

Hi, E ! Thanks for checking on this / you make me laugh (in a good way).

Not yet. I was going to put one into the antique Granat setting but that will probably get a blue stone. The very strong blue fluoro is on my short list, though.

I'll be sure to let you know when I do.

 

[Rockdiamond]

it will vary from stone to stone.

Thanks so very, very much, Dave !

So, while it varies from stone to stone - still, probably if I want one to have that slight blue in daylight, I might not be able to go with a lower color as It seems the yellow of the lower color diamonds would cover up the bluish tint. (Or could that give you a greenish color outside?)

lower color in daylight = looks less yellow
higher color in daylight = possibly may go bluish

Did I get that right?

Hi Sonoma,
I just saw this- sorry for the slow reply.


There's really no consistency in the way fluorescence affects these stones. Even colorless stones.
I've seen D colors that looked BLUE- I mean really BLUE WHITE
Others, with the same amount of FL, no way to see that blue.

It's more complicated at the lower colored end of the scale.
Having said all that, in the colors from L through S-T or so, fl usually makes a stone look "whiter" in sunlight.