see jane draw The Jewellery Design Resource Site
E-Mail:
jane@seejanedraw.com
Most of the information in this section was submitted by my brother-in-law, Duncan Parker. He is a FGA, FCGmA, and is a partner at Canada's foremost gemmological laboratory, Harold Weinstein Ltd. In addition, he is President of the Canadian Gemmological Association, teaches Gemmology at George Brown College and at the Canadian Gemmological Association. He also makes a great cup of coffee and has an Honours BA (in Medieval English and Contemporary Drama) and two daughters.
Among the goodies he has compiled, after 30 years as a fervent lapidary and gemmologist, are;
What are the "Ideal" Proportions for a brilliant cut diamond?
Ring sizes can be very confusing. This site gives a handy conversion chart for USA, British (UK), French, German, Japanese and Swiss sizes with their equivalent measurements in millimetres and inches.