Our credentials

Harold Weinstein Ltd. is a gemmological laboratory staffed by highly qualified and experienced associates. As president and senior gemmologist of HWL, Anne Neumann's passion for jewellery and to jewellery education is indicative of our commitment to the Canadian industry as well as jewellery buyers.

Anne Neumann CV


American Gem Society (AGS)
Canadian Jewellers Association (CJA)
past member Executive Committee, Jewellers Vigilance Canada (JVC)
past Chair Board of Directors, Canadian Jewellers Institute (CJI)
Society of Jewelry Historians (USA)
founding vice-president Toronto Chapter GIA Alumni Association
Canadian Jewellers 24 Karat Club
DeBeers Carat Club


ICGA (Independent Certified Gemologist Appraiser) American Gem Society
CAP (Certified Appraisal Professional) Canadian Jewellers Association
GG (Graduate Gemologist) Gemological Institute of America
GJ (Graduate Jeweller) Canadian Jewellers Institute
MA (History) York University, Toronto
BA (Psychology) York University, Toronto


Present: Owner, Harold Weinstein Ltd, Toronto
1978-1997: Harold Weinstein Ltd Toronto, Vice-President, Appraiser
1976-1978: Manager Gordon Jewellers, Bloor Street Guild Store, Peoples Jewellers

Related Experience

Diamond grading instructor: two-day and one-week classes, CJI
Coloured Gemstone identification instructor, CJI
Co-Author: Training Course for Retail Jewellers (JETS)
Expert witness for the Crown in cases involving Canada Customs and the RCMP
at all levels of Ontario court
Expert witness in civil matters at all levels of Ontario courts
Consultant, Royal Ontario Museum