It's Bernard K. Passman. He passed away a few years ago but I'm pretty sure his orginial work is still being sold.
The work is wonderful and all of the stores are friendly and inviting even if you just want to look around at the fabulous sculptures.
My father introduced me to his work years ago when he purchased some black coral cufflinks. Then last year I purchased a beautiful butterfly charm and black coral enhanced chain for my Mom. It's expensive jewlery, but they really all signed works of art. I'm really picky with my "real" jewlery and I love looking at his stuff.