Advice about Fluorescence of a diamond

[jaslin13]

Hi I am just wanting to get some professional advice. I am looking at purchasing a diamond. It is a follows: 1.24 E SI2 Proportion Grade = Very Good, Finish Grade = Very Good, Fluorescence = Medium. I am a little worried about the Fluorescence showing up in normal light a bit too blue and making the stone appear oily or milky. Should medium fluorescence not make a difference to this stone or should I look for Nil fluorescence as it is an E colourless in colour?

 

[JulieN]

http://diamonds.pricescope.com/fluor.asp

It is an AGS?

as it is a medium, I don't think you need to worry about milkiness or oiliness, which is very rare, anyway.

as to the issue of it looking blue, I don't like it because I don't look good in blue! However, some people love strong blue flour!

 

[jaslin13]

Hi thanks for answering. Sorry but what is AGS? Do you think it will look too blue?

 

[JulieN]

AGS-American Gemological Society. I was asking if your stone was graded by AGS.

Long GIA article describing study about flouresence: http://www.gia.edu/pdfs/W97_fluoresce.pdf

Pictures here of strong blue flour stones: https://www.pricescope.com/community/threads/show-me-your-strong-blue-fluorescence-diamonds.42423/

 

[Lorelei]

Welcome to PS

It is rare for a diamond with medium fluorescence to look oily or milky, this only very rarely happens with strong. To give you an idea, a vendor here who has been in the trade over 30 years said that out of all the many strong fluoro diamonds he has sold in that time, only 2 or 3 have looked oily etc in certain lights. Does this reassure you a bit?

Best of luck with your purchase!

 

[mdx]

For the group of Pricescopers that love fluorescing diamonds.
Here is an image you may find interesting
Johan

 

[JulieN]

wow, johan, that is cool!

 

[Lorelei]

That is a great picture, thankyou!

 

[jaslin13]

Hi thanks for answering. In normal sunlight will the medium give off a blue tinge or do you think it would be so minimal it wouldn''t be noticeable.

 

[diamondlil]

What a fantastic picture, Johan. Thanks for sharing that. I love the look my medium blue gives me in sunlight. It is a blue tinge, but it is minimal and probably only noticeable upon direct comparison to another non-fluorescent stone.

 

[ladykemma]

does anyone know where that bit of fluorescence misinformation came from? quoted as gospel and treated as urban legend.

i would aim for strong blue fluorescence, fer sure.

 

[strmrdr]

Date: 5/14/2006 2:54:48 AM
Author: mdx
For the group of Pricescopers that love fluorescing diamonds.

Here is an image you may find interesting

Johan

that is awesome!