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Jewelry Buying and Brokerage Service
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Gregory E. Sherman & Associates will present offers on select jewelry items and can also act as a broker for your important items and collections.
| In-home service
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We offer the option of professional in-home service for larger collections of jewelry, and for collections of decorative arts, crystal, china, and silver.
| Meet Gregory E. Sherman, GG, FGA, DGA
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Appraiser’s Professional Profile
Gregory E. Sherman
With gemological credentials earned at esteemed schools in New York, London, and the University of Nantes in France, Gregory E. Sherman is one of the most highly qualified gemologists and jewelry appraisers in the United States. Sherman has over 25 years of international jewelry industry professional with extensive experience in retail management, consulting work, gemological research, jewelry appraising, teaching, and professional speaking. He has numerous credentials and diplomas from the Gemological Institute of America, the Gemmological Association of Great Britain, the International Society of Appraisers, and the American Society of Appraisers. He is the former Director of Marketing and Education at European Gemological Laboratory USA, one of the largest gemological institutions in the world. He has discussed jewelry topics on the radio and appeared on the History Channel’s Diamond Mines and on Shop NBC as a gemstone expert. He is coauthor of the booklet Changing the Color of Diamonds, the High Pressure High Temperature Process Explained, and has written numerous articles for the jewelry trade. Sherman has taught gemology at the Fashion Institute of Technology in Manhattan and served as Director of Gemology Education at the California Institute of Jewelry Training where he instructed residence students in the educational programs of the Gemmological Association of Great Britain.
Major education and credentials
Graduate Gemologist Diploma; Gemological Institute of America, New York
Certified Appraiser of Personal Property Diploma; International Society of Appraisers.
Master Gemologist Appraiser Program; American Society of Appraisers
Gemmology Diploma; Gemmological Association of Great Britain, London
Diamonds Diploma; Gemmological Association of Great Britain, London
Advanced Scientific Gemology Program, University of Nantes, France
Additional professional development and courses
International Society of Appraisers; Antique and Period Jewelry Course.
International Society of Appraisers; Expert Witness Course.
American Society of Appraisers; ASA Master Gemologist Appraiser Program.
The Gemmological Association of Great Britain; Intensive course in advanced gemological training
American Society of Appraisers; GJ 205 course, Appraisal Theory, Methods, and Application.
Notable publications, articles and media
Changing the color of diamonds: the High Pressure High Temperature Process Explained
The History Channel Modern Marvels: Diamond Mines
Shop NBC, paid on-air gemstone expert; two appearances
WKAKE, WKCTU, NBC Wichita KS
Research projects
The morphology of rough diamonds, emphasizing unusual shapes and colors
Causes of color in natural and synthetic diamonds
Classification of diamond by Type
Digital X-ray processes adapted for the examination of cultured pearls, natural pearls, and fracture filled diamonds
Investigation of artificial diamond coloration through HPHT and irradiation
Spectrophotometer investigation of synthetic and artificially colored diamonds
Field research into the mining of rubies, sapphires, and jadeite on location in Burma (Myanmar)
Lectures and presentations
Over 50 lectures and presentations to various groups, associations, and corporations around the world.
Key appraisal assignments
Appraisal of numerous jewelry collections exceeding two-million dollars; examination of twenty-six million dollar 108 carat D color Flawless emerald cut diamond; examination of rough diamond crystals over 200 carats.
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Gregory E. Sherman & Assoc.
732-470-4414
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Ph: 732-470-4414
appraiser@gregorysherman.com
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