Tag Archives: Jewelry Materials

Name that Material – Bobby Mann

Posted on September 30, 2012 by dcgiaorg

William R. Mann “Bobby”, is a Graduate Gemologist, GG (GIA) (1982) and a Professional Gemologist, PG (Columbia School of Gemology (1983). A collector of unusual Ivories, Bobby provided a fun-filled evening with 150 Mystery materials used in jewelry making. The … Continue reading →

Posted in Meeting Archives | Tagged , , | Leave a comment