Trick or Treatments

The Canadian Gemmological Association’s 16th Annual Gem Conference and Graduation, Nov. 4–6, will highlight gem Tricks and Treatments. Guest speakers include Dr. Jack Ogden, chief executive officer, Gemmological Association of Great Britain, discussing the “History of Gemstone Deception”; Duncan Parker, Harold Weinstein Ltd., on “Diamond Synthetics and Treatments”; Dr. Mary Garland, on “Advanced Technology for Detection”; Anne Neumann, Harold Weinstein Ltd., on “Appraisal Value of Treated Material”; and Hugh MacKenzie, partner, McLean & Kerr LLP, on “Legal Considerations for Disclosure.”

Warren Boyd, of the Canadian Government Diamond Valuator, will offer a “Canadian Diamond Update.” For information, call CGA at (416) 785-0962, or visit