Liette (Lee) Rock, FCGmA, CDG-HRD, RMV

Lee Rock headshot
Liette (Lee)


Growing up in the Jewellery Industry, Lee Rock was fortunate to have worked and studied in numerous facets of the Jewellery Industry, as a Gemmologist (FCGmA), a Certified Diamond Grader (CDG-HRD) and a Registered Master Valuer (RMV), she has opened and managed a number of high end retail jewellery stores, wrote comprehensive jewellery training programs and facilitated the MasterValuer™ workshops at the Canadian Jewellers Association. Lee owns and operates an on-site Jewellery Appraisal Business, performing jewellery appraisals for Retail Jewellery Stores, Insurance Companies and Legal Firms. Lee is a Professor at George Brown College where she teaches the Diamond Grading, Jewellery Appraisal and the internationally recognized Registered Master Valuer Program.

Academic Credentials

George Brown College, Adult Teaching Program 2010

Registered Master Valuer, California Institute of Jewelry Training 2007

Certified Appraisal Professional, The Canadian Jewellers Association 2007

Friedman Professional Jewellery Selling Systems Certified 2007, Burlington, Ontario

Certified Diamond Grader, HRD (High Diamond Council) 2003

Dale Carnegie – Management Certification, Guelph, Ontario 2006

Fellow (FCGmA), The Canadian Gemmological Association 1998

Areas of Expertise

Research and writing Jewellery manuals

Jewellery Design

Jewellery Appraising

Diamond Grading

Retail Jewellery Store Consulting

Staff recruitment and Training

Operations Manager with Jewellery Chains stores

MasterValuer Program Facilitator

Career Highlights

2018: Guest at the DeBeers 10th Anniversary Victor Diamond Mine, Attawapiskat, Ontario

2011 – Present: Professor, Diamond Grading, Jewellery Appraisal, MasterValuer™, George Brown College

2009: Developed the MasterValuer™ Residency Program for the Canadian Gemmological Association

2008 – 2011: Instructor for the MasterValuer™ Program, CJA

2002 – 2006: Manager, Jewellery Appraiser - Knar Jewellery, Company Representative at the “Hearts on Fire” University, Las Vegas

1993 – 1999: Manager, Jewellery Appraiser , Adi Fine Jewellers, 24 Locations

1999 – Present: Owner Gem Certified Jewellery Appraisals

Other Activities

Jewellery Photography

Custom Designing Jewellery

Jewellery Appraising

Representative for Community Charity events

Halton Industry Educational Council (Women as Career Coaches)

Appleby College

Kid’s Fest

Children’s Aid Foundation

Charity of Hope

Guest Speaker at the Oakville Trafalgar High School Promoting Gemmology as a Career


Awarded the 2006 Readers Choice Award “#1 Jewellery Retailer of the Year”