Strong Orange Fluor in Lab Stones?

[monipod]

Starting this as a new thread so as to not hijack OP

Are you happy with the Strong Orange fluorescence?

I'm not sure if it's something that most/all Pinks will have.

I noticed that a lot of the fancy pink/orange stones on New World Diamonds have strong orange fluorescence which I found curious because just about all D-Z lab stones (at least for sale) have nil fluorescence. Any science/lab stone boffins able to weigh in? I'm guessing that the pink/orange stones have been heat treated for colour, so I'm guessing the base stone was brown, but does that mean that the seed started out as a brown with SOF?

PS - I loooooooove Fluor, and it's swaying me towards getting a lab fancy orange or pink if they have SOF

 

[OoohShiny]

I'm sure the www.GIA.edu site has info on this but the search tool is not working for me right now!

 

[monipod]

Not much info at GIA but I found this old PS thread that explains a few things: https://www.pricescope.com/community/threads/do-lab-grown-diamonds-ever-have-fuorescence.187000/

Blue fluorescence is uncommon in lab diamonds but orange is more common. Depends on the alloy used? Heating can remove the orange fluor and leave them with a green fluor

 

[monipod]

Also this from @Briolet:

"There are two origines of pink color in a diamand.
A : Distortion of the lattice can give a pink collor.
B : Singular nitrogens with a lattice hole next to it also give a pink color.

De structure in B also gives an orange fluorecence. The structure in B is accomplished by irradiating a yellow type Ib diamond.

This irradiation can happen naturally, but normally it are artifically irradiated type 1b diamonds. (Both natural as labgrown type 1b diamonds)."

So I'm thinking that lab pink/orange stones are irradiated yellow type 1b lab stones? So, so fascinating!

 

[xxxxxx]

A lot of HPHT grown diamonds show phosphorescence