Expert explain fluorescence please!

[qui499kyl]

I generally know what it is . I've read mixed reviews about it helping or hurting stones. Will a GIA measured "medium blue" fluorescence help an H color, or would I be better getting a G stone?

Thank you!

 

[marymm]

Have you read this PS article already? https://www.pricescope.com/wiki/diamonds/diamond-flourescence

If you're looking at GIA/AGS ideal-cut diamonds and you're okay with G, I think you'd be fine with H with med blue fluor.

 

[Gypsy]

Medium fluorescence isn't going to make the stone look a grade brighter. But an H is not really tinted at all. If you are talking rounds, just stick to something with ideal light return. If you are talking a fancy, then it's a little more complicated.

What is your goal?

Also please post the pictures and the lab report of the stone you are considering.

 

[MollyMalone]

In addition to the great article on the topic by Brian Boyne of Whiteflash that marymm linked for you, here are some informative discussions had earlier this year:
[URL='https://www.pricescope.com/community/threads/fluorescence-pros-and-cons.211191/']https://www.pricescope.com/community/threads/fluorescence-pros-and-cons.211191/[/URL]
[URL='https://www.pricescope.com/community/threads/fluorescence-revisited.214039/']https://www.pricescope.com/community/threads/fluorescence-revisited.214039/[/URL]

 

[alamana]

In addition to the great article on the topic by Brian Boyne of Whiteflash that marymm linked for you, here are some informative discussions had earlier this year:
[URL='https://www.pricescope.com/community/threads/fluorescence-pros-and-cons.211191/']https://www.pricescope.com/community/threads/fluorescence-pros-and-cons.211191/[/URL]
[URL='https://www.pricescope.com/community/threads/fluorescence-revisited.214039/']https://www.pricescope.com/community/threads/fluorescence-revisited.214039/[/URL]

I enjoyed following the discussions in those links and then the links in those links -- and found an interesting discussion about grading color under certain lighting conditions. It made me wonder about my own stone, which has medium blue fluor, as it is an E according to GIA but when I took the stone (loose) to an independent appraiser he said "I would probably have graded it an F -- but it's close." He also said he thought they could have graded it VVS1 instead of VVS2 -- I guess it all evens out, ha ha.

But I love reading and learning about fluorescence. It's so interesting! And there is so much wonderful knowledge here!