Dr. William Hanneman, known for his many contributions to gemology including creating a line of affordable instruments, died last month at the age of 93. He is pictured here at left with his friend Alan Hodgkinson, also an award-winning gemologist.
A pillar of the community, he used his chemistry degree and analytical mind to teach himself gemology and then create a line of affordable instruments.
The dossier-sized report provides information based on seven pearl value factors and doesn’t include identification or advanced testing of the submitted material.
A pillar of the community, he used his chemistry degree and analytical mind to teach himself gemology and then create a line of affordable instruments.
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