[Source] Old European cut CZ

Hello Everyone

I need some help!

I have a customer looking for a 12 mm old European cut cubic
zirconia that has either a white or “warm” tone to it. Does anyone
know where I can get a stone like this?

I have tried the usual websites:

The sizes stop at 10 mm and jump to 20 mm all the way up to Cullinan
I size!

http://www.ganoksin.com/gnkurl/1w7
Everything seems to stop around 8 mm

http://www.ganoksin.com/gnkurl/1w8

The largest they have is 9.5 mm and their prices are outrageous! I am
sure the cut is perfect but not at 10x the price of everyone else.

Any help would be greatly appreciated!

Thank you
Kenneth