Canadian Gemmological Association

Canadian Gemmological Association The Canadian Gemmological Association (CGA) is a Canada-wide professional organization which has set standards in the practice of gemmology.

The Canadian Gemmological Association offers Vocational and General Interest Courses in its Toronto Location. Affiliate schools in California and Vancouver offer our Vocatonal program.

Discover the brilliance of diamonds ✨Join us for a 5-hour course that makes learning about diamonds simple, practical, a...
06/18/2026

Discover the brilliance of diamonds ✨
Join us for a 5-hour course that makes learning about diamonds simple, practical, and engaging. Explore how diamonds are formed, their unique physical and optical properties, the artistry behind cutting and polishing, and how the 4Cs—cut, clarity, colour, and carat weight—shape their beauty and value. You’ll also gain hands-on experience using a loupe and diamond tweezers.

📅 Date: June 27, 2026
📍 Location: CGA Classroom, 55 Queen St East, Suite #105, Toronto

Register today by reaching out via email, [email protected], or 1-877-CGA-GEMM (US & Canada only).

Happening TODAY!!!June Monthly Meeting: CGA Social / Potluck & Gem Trivia 💎🍽️Join us on Wednesday, June 17, 2026 at 7:00...
06/17/2026

Happening TODAY!!!

June Monthly Meeting: CGA Social / Potluck & Gem Trivia 💎🍽️

Join us on Wednesday, June 17, 2026 at 7:00 PM for an evening of good food, great company, and fascinating gemstones.

Bring your favourite dish to share and a gemstone from your collection for an informal show-and-tell. Enjoy conversations with fellow enthusiasts, test your gem knowledge, and discover the stories and features that make each stone unique.

📍 CGA, 55 Queen St East, Lower Concourse #105, Toronto

Open to all — whether you're a long-time collector, a student, or simply curious about the world of gems, we look forward to welcoming you for a memorable evening.

Happening Tomorrow!!!June Monthly Meeting: CGA Social / Potluck & Gem Trivia 💎🍽️Join us on Wednesday, June 17, 2026 at 7...
06/16/2026

Happening Tomorrow!!!

June Monthly Meeting: CGA Social / Potluck & Gem Trivia 💎🍽️

Join us on Wednesday, June 17, 2026 at 7:00 PM for an evening of good food, great company, and fascinating gemstones.

Bring your favourite dish to share and a gemstone from your collection for an informal show-and-tell. Enjoy conversations with fellow enthusiasts, test your gem knowledge, and discover the stories and features that make each stone unique.

📍 CGA, 55 Queen St East, Lower Concourse #105, Toronto

Open to all — whether you're a long-time collector, a student, or simply curious about the world of gems, we look forward to welcoming you for a memorable evening.

💎 Gem Appreciation – Toronto📅 June 20, 2026 | ⏰ 9:30 am – 3:00 pmOnce reserved for the powerful, gemstones are now treas...
06/15/2026

💎 Gem Appreciation – Toronto
📅 June 20, 2026 | ⏰ 9:30 am – 3:00 pm

Once reserved for the powerful, gemstones are now treasures anyone can enjoy. In this 5-hour course, discover the nature of gems, their enduring allure, and why it’s more important than ever to know a little before buying.

Please visit www.cgagem.com OR call our toll-free number 1-877-CGA-GEMM (US and Canada only) for more information or to sign up!

💎 The Diamond Market — The Change That’s Here And The Change That Is ComingThe diamond industry is experiencing a period...
06/12/2026

💎 The Diamond Market — The Change That’s Here And The Change That Is Coming

The diamond industry is experiencing a period of transformation. From the rise of synthetic diamonds and changing consumer demand to shifts in natural diamond supply, what does the future hold for the diamond market?

Join Mr. Jon Phillips, Graduate Gemologist (GG) and industry expert with over 40 years of experience, as he explores the forces shaping today’s marketplace and what these changes may mean for the future of natural and synthetic diamond sales.

With a career spanning diamond sourcing, jewellery manufacturing, education, and industry leadership, Jon brings a unique perspective on one of the most important conversations facing the gem and jewellery world today.

📅 July 15
🕐 10 AM PT / 1:00 PM ET

For registration information, please visit www.cgagem.com, or reach out to us at [email protected]!

Thank you to our new neighbour Bork Gems Wholesale for their generous donation to our teaching collection!
06/11/2026

Thank you to our new neighbour Bork Gems Wholesale for their generous donation to our teaching collection!

06/11/2026

Curious about gemmology?

Come visit the Canadian Gemmological Association!
Whether you’re interested in gemstones, diamonds, jewellery or gemmology education, we’d love to meet you.

Visit us during the open house

June Monthly Meeting: CGA Social / Potluck & Gem Trivia 💎🍽️Join us on Wednesday, June 17, 2026 at 7:00 PM for an evening...
06/10/2026

June Monthly Meeting: CGA Social / Potluck & Gem Trivia 💎🍽️

Join us on Wednesday, June 17, 2026 at 7:00 PM for an evening of good food, great company, and fascinating gemstones.

Bring your favourite dish to share and a gemstone from your collection for an informal show-and-tell. Enjoy conversations with fellow enthusiasts, test your gem knowledge, and discover the stories and features that make each stone unique.

📍 CGA, 55 Queen St East, Lower Concourse #105, Toronto

Open to all — whether you're a long-time collector, a student, or simply curious about the world of gems, we look forward to welcoming you for a memorable evening.

🔍 Ready to take your gemmology knowledge further?Building on the visual inspection skills gained in Gem Appreciation, ou...
06/09/2026

🔍 Ready to take your gemmology knowledge further?

Building on the visual inspection skills gained in Gem Appreciation, our Introduction to Gem Identification course explores the physical and optical properties that help distinguish natural, synthetic, and imitation gems found in both modern and antique jewellery.

📍 CGA Classroom - 105-55 Queen St East, Toronto, ON
🕤 May July 4 & 5, 2026 ; 9:30 am – 3:00 pm

Register now via our website, [email protected] or call 1-877-CGA-GEMM (US & Canada only)!

Thinking about a career in gemmology? Learn more about the courses that can help shape your path in the field at the CGA...
06/08/2026

Thinking about a career in gemmology? Learn more about the courses that can help shape your path in the field at the CGA Open House — happening this week, on June 11!

🕔 June 11, 2026 | 2–4 PM; 5–7 PM
📍 105–55 Queen St. East, Toronto

Address

55 Queen Street E
Toronto, ON
M5C1R6

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

Telephone

+16474662436

Website

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