• Monthly Meeting – May 20, 2026

    CGA Classroom, Toronto 55 Queen St East, Suite #105, Toronto, Ontario, Canada

    Speaker: Karen FoxTopic: Signs of the Times: A sampling from gem show identification booths and beyond Open to all. Gems and jewellery have always reflected aspects of current culture and the state of fabrication technology available during a given period. The treasures brought for identification at gem shows range from the inherited and the found […]

  • Talking Opals – Toronto – May 23, 2026

    CGA Classroom, Toronto 55 Queen St East, Suite #105, Toronto, Ontario, Canada

    General Interest | Talking Opals  | Toronto | May 23, 2026 This 5-hour course explores the luminous world of opals, their mesmerizing play-of-color and timeless allure. As October’s birthstone and one of nature’s most unique gems, opals offer an exciting lens into gemmology. Designed for curious learners and jewellery lovers alike, the course offers a […]

  • Accelerated Professional Gemmology – Vancouver – May 25, 2026 to August 20, 2026

    CGA Classroom, Vancouver

    Accelerated Professional Gemmology | Vancouver | May 25, 2026 to August 20, 2026 Become a qualified gemmologist in just 4 months. This is the most efficient option for those needing to put their training into action as soon as possible. Upon successful completion of the program, students will be eligible to write the CGA Fellowship […]

  • Webinar – Identifying The Period Of Jewels

    Join Mr. Duncan Parker as he takes on the journey of Identifying The Period Of Jewels.  Mr. Parker is currently vice-president of the CGA and is also vice-president of Dupuis Fine Jewellery Auctioneers.

  • Talking Pearls – Toronto – June 6, 2026

    CGA Classroom, Toronto 55 Queen St East, Suite #105, Toronto, Ontario, Canada

    General Interest | Talking Pearls  | Toronto | June 6, 2026 This 5-hour course delves into the enchanting beauty of pearls—their subtle glow, timeless appeal, and natural mystique. As June’s birthstone and one of the ocean’s most treasured gifts, pearls offer a fascinating gateway into gemmology and jewellery artistry.Syllabus: The nature and properties of pearls […]

  • Understanding Diamond Imitations – Toronto – June 13 & 14, 2026

    CGA Classroom, Toronto 55 Queen St East, Suite #105, Toronto, Ontario, Canada

    General Interest | Understanding Diamond Imitations  | Toronto | June 13 and 14, 2026 | 9:30am-3:00pm This 10-hour (2 day)course will help the student to recognize the physical and optical properties of diamonds and diamond imitations. Gemmological instruments are used to distinguish between imitations of diamonds such as cubic zirconia, synthetic moissanite, Zircon and synthetic […]

  • Gem Appreciation – Toronto – June 20, 2026

    CGA Classroom, Toronto 55 Queen St East, Suite #105, Toronto, Ontario, Canada

    General Interest | Gem Appreciation | Toronto | June 20, 2026 This 5-hour course explores the nature of gemstones and their timeless allure, and investigates why it’s more important than ever to know a little before buying. Birthstones are generally the most highly recognized of the gems on the market today, and serve as our […]

  • Talking Diamonds – Toronto – June 27, 2026

    CGA Classroom, Toronto 55 Queen St East, Suite #105, Toronto, Ontario, Canada

    General Interest | Talking Diamonds  | Toronto | June 27, 2026 This 5-hour course provides practical easy to understand information about diamonds. It is intended for anyone interested in learning more about these fascinating gems. Learn about diamond formation, the physical and optical properties of diamonds, the process for cutting, faceting and polishing of diamonds, […]

  • Intro To Gem Identification – Toronto – July 4 & 5, 2026

    CGA Classroom, Toronto 55 Queen St East, Suite #105, Toronto, Ontario, Canada

    General Interest | Intro to Gem Identification  | Toronto | July 4 and 5, 2026 | 9:30am-3:00pm This 10-hour, 2-day, hands-on course, focuses on gem identification. Building on the visual inspection skills acquired in Gem Appreciation, we investigate other physical and optical properties that help identify the natural, synthetic and imitation gems. Small, simple pocket […]