Canada Gem Laboratory Goldsmiths & Gemologists Since 1979 Watermark Tower (besides Holt Renfrew) #201,530 8Th Ave. S.W. Calgary, AB T2P 3S8 Tel: 403 264 9037 Toll free for Canada & USA: 1 866 262 4448 Home | Products | Experts Advise | Service | Promotion | Contact Us