How rare is yellow flour?

[Niel]

how rare is yellow flour, is it more likely in yellower diamonds?

 

[SoonerSage]

Rare, from my understanding. Most fluoresce blue, even yellow diamonds. Though any color, including fancy yellows, can fluoresce yellow. Here is a link with some info.

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

 

[Niel]

I guess, i mean, i know its "rare" but how rare, if i wanted to find one, could i ask someone to find me one, or is this just wishful thinking. If i said "find me a 1ct Y-Z pear with strong yellow flour" will i be SOL

I know pears will be harder to find and probably the Y-Z will be too, but impossible?

 

[RockyRacoon]

I don't know how rare it is, but I happened to come across this one that looked pretty good (with Strong Yellow fluor) in my search for a fluor stone with phosphorescence:
http://www.lumeradiamonds.com/diamonds/detail/41563578

Might be of interest!