When he went after Ron Pearlstein (diamond merchant) Herb was in my bosses office a lot. I worked at a jewelry store and my boss was a certified gemstone appraiser. Herb would come in with new brides to have him appraise diamonds that their husband's bought from Ron Pearlstein. Basically, Pearlstein would sell them a rock and say it was "grade A" quality but in reality it was a C+ at best (the terminology isn't A, B, C, D etc. but I'm keeping it simple), not that anyone could really tell without looking at it through a microscope.

Herb Ertlinger