Looking for blue fluoresence

[JackSpider]

Hi guys,

My girlfriend will definitely like the effects of blue fluorescence so i thought why not!

http://www.jamesallen.com/loose-diamonds/round-cut/0.90-carat-k-color-vs1-clarity-excellent-cut-sku-726787
http://www.jamesallen.com/loose-diamonds/round-cut/1.00-carat-k-color-vvs2-clarity-excellent-cut-sku-823875
http://www.jamesallen.com/loose-diamonds/round-cut/0.92-carat-k-color-vs1-clarity-excellent-cut-sku-854932

Please let me know what you think!

Thanks!

 

[diamondseeker2006]

Has she seen K color? Because it is going to be tinted and not as bright as a higher color stone. I recommend higher than K for an engagement ring.

 

[diamondseeker2006]

The third stone above is the only one of those that would be close enough to good cut parameters to consider.

These are measurements to help you stay in ideal cut territory with a GIA excellent cut stone.

table: 54-58

depth: 60-62.3

crown angle: 34-35.0

pavilion angle: 40.6-40.9 (sometimes 41.0)


Also, there is a screening tool for GIA ex cut stones:

https://www.pricescope.com/tools/hca

You want to see Excellent on light return, fire, and scintillation, and very good on spread. An overall score of 2.0 or lower means a diamond is worth exploring further (but a 1.0 isn’t necessarily better than 1.9).

 

[JackSpider]

Thank you for the guidelines

I seem to have trouble identifying very strong blue diamonds that are good

Would love to know your recommendations please