Language to describe fancy cuts with High Brilliancy, Fire , Scintillation

[blueMA]

First time consumer. It just so happened that my fiancee does know a thing or two about diamonds and I had no choice but to dive head on into the subject...
I am an engineer (mechanical/aerospace)

I wonder if you're my nephew who works at NASA propulsion?

 

[VinniePooh]

I wonder if you're my nephew who works at NASA propulsion?

I have no idea about our possible family connections, but I definitely not working at NASA propulsion. Don't even live in States.