Geoff is an independent Gemmologist based in Vancouver, British Columbia and the senior jewellery appraiser on the CBC Canadian Antiques Roadshow. He is a Fellow of the Gemmological Association and Gem Testing Laboratory of Great Britain with Distinction, which is one of the highest Gemmological designations in the world. He has been appraising, lecturing and teaching since 1987.  

Throughout the 1990's, Geoff developed and taught the 'Gemmology' program at both Red River Community College and The University of Manitoba in Winnipeg, worked for the Canadian Institute of Gemmology, was President and Founder of the Jewellery Appraisers Association of Canada and was asked to be a contributing author for the 5^th & 6^th Editions of Robert Webster's 'Gems' which even today is considered one of the most authoritative textbooks in Gemmology.

In addition to numerous speaking engagements, Geoff also teaches the 'Jewellery Appraisal' program at Vancouver Community College and has just finished writing 'The Handbook of Gemmology' which he hopes to release in March 2012.  

Aside from his love of Gemmology, Geoff is also the founder of Hope through Humanity, an organization which provides educational scholarships to children and adults in Peru and the co-founder of Quest School of English, which is located in San Juan Miraflores, Lima, Peru.