HPHT laboratory

Good evening everyone!
I own few brown type 2 diamonds that I would send for HPHT enhancement. I made tons of searches, asked several laboratories, and the only one that I found is Bellataire.
The problem with them, is that they are really expensive, really taking their time, and don’t do the recutting…
It’s complicated…
So, my question is : does anyone know another laboratory in Europe…?
Thanks in advance!