Harold Weinstein Ltd.
Gemmological Laboratory
Canada's foremost gemmological laboratory, Harold Weinstein Ltd., provides gemmological and jewellery-dependent services, including jewellery appraisals, (jewelry for our American clients), diamond grading, and gemstone evaluation and identification.
For over thirty years our professional gemmologists have been providing their expertise to major law firms, government agencies, national jewellery chains, international auction houses, fine independent jewellers and discerning individuals like you.
The links below lead to pages where we’ll explain different types of jewellery appraisals, give tips on jewellery buying, selling and insuring, as well as explain about the 4 C's of diamond grading and much more.
Have a look at our GemNews blog for current information, comments, and news on gems.
Copyright © 2008 Harold Weinstein Ltd. All rights reserved.