Live Online Seminar

Emerald: Country of Origin Determination Seminar

An 887 ct emerald rough and 95.51 ct twt pear shape emeralds from Muzo, Columbia. Courtesy: Manual Marcial de Gomar.

Learn how to determine a emerald's source and how source affects value

The value of high-end colored stones can increase dramatically based on their origins, which is why ‘country of origin’ has become the most important value factor to consider, in addition to the quality factors of individual stones such as color, size and shape. This is particularly true for emerald as it has been mined from nearly every continent, with major sources in Central Asia, Columbia, Russia, Brazil and Africa.

This seminar will introduce the main sources of emerald around the globe, their status in the market, and the methods the GIA Laboratory applies to determine emerald country of origin, including identifying inclusion scenes, trace element profiling and spectroscopic analyses.

This seminar is ideal for sales associates, retailers, investors, collectors and researchers. Familiarity with colored stone value factors is recommended.

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What you'll learn:

  • The main emerald sources around the globe and the microscopic features that are characteristic for each.
  • Familiarity with the advanced testing modern gem laboratories use to help determine country of origin for emerald.
  • The complications and challenges involved in emerald country of origin determination.

Participants will be provided a digital reference guide, links to important emerald country-of-origin determination articles, an emerald inclusion chart, and are encouraged to ask questions as they are guided by a GIA researcher who will share their expertise through illustrations, images and lecture.


Each online seminar is two hours. New dates may be added throughout the year. The number of attendees will be limited to ensure the best experience for attendees.

  • July 20, 2021 – 10 a.m. to 12 p.m. Pacific Time

This live seminar will be delivered through an online learning platform.


$195 USD (GIA Alumni receive a 10% discount)


Please complete the online registration form. You will be provided information about how to access the platform after your registration is confirmed.

GIA’s continuing education offerings are considered avocational or recreational in nature and are not intended to prepare individuals for entry-level employment. They are non-credit bearing and do not lead to a GIA academic credential. They are not eligible for state or federal student financial aid programs and do not fall under the approval of the Accrediting Commission of Career Schools and Colleges (ACCSC) or the Distance Education Accrediting Commission (DEAC).

Dates, course content and instructors are subject to change.