Unfortunately I was unable to examine one of these stones as closely
as I would have liked. But I told the customer I would research what
it was she just bought.
From surfing the web I seem to be getting that its just a CZ in a
fancy box. The website claims a hardness of 9.1 which would rule out
CZ @8.5 but doesn’t give any other info of gemological relevance. In
the sunlight the stone looked moderately to highly fluorescent and it
hefted like a CZ. And it LOOKED like a CZ.
Putting the clues together I might suspect its a CZ with some sort
of synthetic sapphire coating. I just don’t deal with anything of
this (un)nature. Does someone have the inside track on these? She
might ask me to set it so any practical considerations would be