| Business | Founded | Contacts |
|---|---|---|
| Myerson's Limited | 1883 | 2 |
| Canadian Gemmological Association | 1958 | - |
| Sapir Diamonds Ltd | 1975 | 2 |
| Glor Jewellery | George Glor Diamond Setter | 1978 | 1 |
| Sindbad Inc | 1980 | 2 |
| Tecimer Jewellery Ltd | 1980 | 1 |
| Mary Jewellery | 1982 | 3 |
| Rose Jewellery Inc | 1982 | 3 |
| Embir Jewellery Ltd | 1984 | 1 |
| Advisor X Personnel Svc Ltd | 1990 | 1 |
| Anaesthesia Services | 1990 | 1 |
| Ararat Diamond Setting | 1990 | 1 |
| Armcan Sales Limited | 1990 | 3 |
| Central Diamonds Inc | 1990 | 1 |
| Gulian Krikor | 1990 | - |
| Jennifer's Jewellers | 1990 | 1 |
| Jonathan Stein | 1990 | 3 |
| M L Facets Gem Services Inc | 1990 | - |
| Restringing Centre | 1990 | - |
| Transcontinental Tool Co. Ltd. | 1990 | 3 |
| Varuj Diamond Setting | 1990 | 1 |
| Leda Jewellery | 1991 | - |
| Dash Jewellery | 1992 | 1 |
| Gem Grade Appraisal Service | 1992 | 1 |
| Kent Jewellery Wholesale Ltd | 1992 | 1 |
| Mimar Diamond & Jewellery Ltd | 1992 | 1 |
| Standard Addy Jewellers | 1992 | 1 |
| World Jewellery | 1992 | - |
| Aldanmaz Investments Ltd | 1993 | 2 |
| Evihan | 1993 | 1 |
| Avian Diamonds | 1994 | - |
| Danaci Jewellery | 1994 | - |
| Trillium Jewellry | 1994 | 1 |
| In Accessories | 1996 | - |
| Liz Jewellers | 1996 | 2 |
| Vandan Associates | 1996 | 4 |
| Antwerp Diamond Company | 1997 | - |
| Artinian Diamonds Inc | 1997 | - |
| Canadian Epilepsy Consortium | 1998 | 9 |
| Lv Design | 1998 | 1 |
| Accudiam Inc | 1999 | 1 |
| Achaldiam Inc | 1999 | 1 |
| Bijou Nous-Vos | 1999 | - |
| Medic Plate Inc | 1999 | - |
| Q Diamond Wholesale & Imports | 1999 | - |
| TDS Jewellery Casting | 1999 | 1 |
| A & A General Trading Inc | 2000 | 1 |
| Baltic Amber Ltd | 2000 | - |
| Bamiyan Silver | 2000 | - |
| Batten Hand Engraving | 2000 | 1 |
| C.D. Barcados Co. Ltd. | 2000 | 2 |
| CG Watch Clock Repair | 2000 | 1 |
| Crown Pearl | 2000 | 2 |
| European Design | 2000 | 3 |
| Excel Jewellery Creations Ltd | 2000 | 1 |
| Floras & Murray | 2000 | 1 |
| Godfrey & Corcoran | 2000 | 1 |
| Harold Weinstein Ltd | 2000 | 2 |
| International Jewelry Co | 2000 | - |
| J a a Trading Co | 2000 | - |
| Louis Frankian Jewellers Inc | 2000 | 1 |
| Mds Metro Labs | 2000 | - |
| Mirko Engraving | 2000 | 1 |
| Ontim Investments Ltd | 2000 | 3 |
| Star Diamond Setting | 2000 | 1 |
| Unique Gems And Jewels | 2000 | 4 |
| BKG Ltd. | 2001 | 13 |
| Ceylon Gems | 2002 | 1 |
| Imperial Gems & Jewels Ltd. | 2002 | 1 |
| Tdf Toronto Diamond Factory | 2002 | - |
| Dixie Uniforms | 2003 | 1 |
| Doma Ltd | 2003 | - |
| EGL Canada | 2003 | 1 |
| James Siddall & Griffith | 2003 | 1 |
| Belpearl Toronto Inc | 2004 | 1 |
| John J Mantzoris & Assoc | 2004 | 1 |
| Lotus Jewellery | 2004 | 1 |
| St Michael's Hospital PHYS Associates | 2004 | 1 |
| Supreme Silver | 2004 | - |
| Pearls By Helen | 2005 | - |
| AST Setting Jewellery | - | 1 |
| Al Pinto Sales & Svc Ltd | 2006 | - |
| Barcados C D Co Ltd | - | - |
| Cupryn J P Dr | - | - |
| Doctor S Gershon Rheumatology | - | - |
| F. T. Gerson Ltd. | - | 1 |
| J L Consulting Ltd | 2006 | - |
| Jack Bagh Fine Jewellery Std | - | 1 |
| Kochuta Peter Jewlers Ltd | - | - |
| Mds Inc | - | - |
| Michael McKee | - | - |
| Murray Brett | - | 1 |
| Rance Judith Barr & Solctr | - | - |
| Select Jewellers | 2006 | - |
| Trasfeld Ensor E Dr Orthopaedic Sur | - | - |
| Wholesale Jewellery Exchange | - | - |
| www.goldsupermarket.com Inc | - | 1 |
| Bruni | 2007 | - |
| Gemland Jewellery Appraisal | 2007 | - |
| Immaclate Diamonds | 2007 | 1 |
| J M P Importing | 2007 | - |
| MDL Inc | 2007 | 1 |
| Mandel Harvey M | 2007 | 1 |
| Rajvi Inc | 2007 | - |
| Reid Jewellery LTD | 2007 | - |
| Siam Corundum | 2007 | - |
| Toronto Engagement Ring Specialists | 2007 | - |
| Anmol Diamonds Inc | 2008 | - |
| B Sussman Jewelry Mfg Ltd | - | 1 |
| Bucci Custom Tailors | - | 1 |
| Caldeira Theodore J | - | - |
| Christine Derzko | 2008 | 2 |
| Cuba Tourist Board | - | 1 |
| European Gemological Lab | 2008 | - |
| Excel Bestview Medical Laboratories | 2008 | - |
| Ginady Briskin Diamond Setting | 2008 | 1 |
| Gk Associates | - | - |
| Goldfingers | 2008 | 1 |
| Milanor Inc | - | - |
| Perrin R G, MD | 2008 | - |
| Royal Findings Inc. | - | 1 |
| Ko Designs | 2009 | - |
| Bearington Fine Jewellery | 2010 | - |
| A L H Hand Engravers-Jewellers | 2011 | 1 |
| Amir Buy & Sell Ltd | - | - |
| Designtek Jewellers | 2011 | 1 |
| Eskimo Diamonds | - | - |
| Jags Gems Inc | - | - |
| Luva 1985 | - | - |
| PTDiamonds | 2011 | 1 |
| Persian Gem & Jewellery Supply House | - | - |
| Sushi Extra | - | - |
| The Diamond Shopper | 2011 | 3 |
| Kazan Accounting & BKPG SVC | 2012 | 1 |
| Canadian Diamond Laboratory (Cdl Canada) | - | - |
| Cash for Gold Toronto | - | 1 |
| Dentistry On Queen East (Dr. John J. Mantzoris) | - | 1 |
| Diamond Source | 2013 | - |
| Downtown medical supplies LTD. | - | - |
| Gemvision Appraisal | - | - |
| Henning Software Solutions | - | 2 |
| SRJ Chartered Accountants | - | - |
| Star Cast | 2013 | 1 |
| Steven G Designs Ltd. | - | 1 |
| Steven Greenwald | - | 1 |
| T&T Jewellers Inc Design Plus | 2013 | - |
| 55 Queen East | - | - |
| Paragon Ltd | - | - |
| Weber Jewellery Inc | - | - |
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