I have seen Barry''s diamonds in person and they are truly spectacular. I also found him to be very perosnable, accomodating and informative. I would buy from him without hesitation.
I have one and I LOVE it. Barry was very easy to work with, and very helpful. Other people have said this sort of thing as well, but I was having difficulty choosing between several stones - Barry recommended one to me, and it was not the most expensive one in the selection set either.