CGA Requirements 2026: Eligibility, Prerequisites & How to Qualify

Who Issues the CGA and What It Certifies

The Certified Gemologist Appraiser credential is issued by the American Gem Society. It is not a general appraisal license, and it is not the same thing as other credentials that happen to share the three-letter acronym. If you are still orienting yourself, start with What Is CGA Certification? or What Does CGA Stand For? before working through the requirements below.

What the credential signals is narrower and more practical than most people assume: a jeweler or gemologist who already holds AGS Certified Gemologist status has added formal appraisal training, passed a theory examination, and demonstrated the ability to write a defensible appraisal report. That last piece is what separates CGA from knowledge-only credentials. You are tested on doing the work, not just describing it.

The Four Eligibility Gates

Qualifying for the CGA is a sequence of gates, and AGS checks them before you can purchase the initial examination. Based on the current AGS credential and application pages, the gates are:

1. Existing AGS Certified Gemologist status. Applicants must already be AGS Certified Gemologists. CGA is an add-on credential, not an entry point into the AGS system.
2. Approved appraisal education. You must complete foundational appraisal education that AGS recognizes as qualifying (detailed in the next sections).
3. Color-vision testing. A color-vision test is part of the application requirements, which makes sense for a credential centered on color grading and description.
4. Agreement to appraisal and report standards. You must agree to the applicable approved appraisal and report-writing standards.

Prerequisite Education: The 2026 Change

The biggest recent shift in CGA requirements came from AGS itself. An August 6, 2026 AGS announcement replaced the former Appraisals I and II prerequisite with approved external foundational appraisal education. If you are reading older forum threads or study blogs that describe the old two-course sequence, treat them as outdated.

AGS maintains a page of examples of qualifying prerequisite education for the CGA application. That page is the authoritative reference, and it explicitly accepts more than one provider route. Because the list can be updated, always confirm your chosen course against the current AGS page before paying tuition. A course that looked acceptable last year is not guaranteed to be acceptable today.

One Approved Route: ASA GJ201 and GJ202

The current AGS qualifying-education page explicitly accepts the American Society of Appraisers' GJ201 and GJ202 courses, among other routes. This is one path, not a mandate. Taking ASA courses does not make CGA equivalent to an ASA credential, and you are not required to choose ASA. But because GJ201 and GJ202 are well documented, they make a useful lens for understanding what foundational appraisal education covers, and what the CGA practical exam will later expect you to apply. These two courses also give us the clearest preparation categories available, as an unweighted outline rather than an official exam blueprint. For how these categories map to study planning, see our CGA exam domains guide.

GJ203 sits outside this minimum route and is not part of the GJ201 + GJ202 pairing discussed here. If you want a topic-by-topic prep plan after enrolling, our CGA study guide walks through how to pace the material.

Color-Vision Testing and Standards Agreement

Two requirements are easy to overlook because they are not courses. First, color-vision testing is part of the application. Treat it as a scheduling item early in your timeline rather than a last-minute checkbox, since you will need results ready when AGS reviews your prerequisites.

Second, you agree to apply approved appraisal and report standards. This is more than a signature. It sets expectations for how you will write reports as a credential holder, and AGS may review your appraisal reports on request after you are certified. Familiarity with USPAP concepts from your foundational education pays off twice: once on the exam, and again in everyday practice.

The AGS Member Employment Requirement

This is the requirement that surprises candidates most. Per the current credential information, employment at an AGS member business is required, and there is no general non-member exam price. Diamond and Gold member discounts exist, but the specific discount amounts are not publicly quoted, so you will need to confirm them directly with AGS.

Practically, this shapes who holds the credential: bench jewelers, retail gemologists and appraisers working inside AGS member firms. If you are weighing whether the credential fits your career, read CGA jobs and our ROI analysis alongside the CGA salary guide. If you work independently or at a non-member store, resolve your membership situation first, because it determines whether you can sit the exam at all.

What You Sit After Approval

Once AGS approves your prerequisites and you purchase the exam, you take AGS-controlled online initial examinations. The credential has two components:

• A theory examination testing the knowledge side of appraisal practice.
• A practical appraisal-report-writing examination where you produce an appraisal report.

Here is where honesty matters. Several details candidates always ask about are not publicly verified: the number of questions or tasks, the scored versus unscored split, the theory response format, timed-component limits, and the initial passing threshold. The same goes for whether calculators, open-book resources or proctoring rules apply to the initial exam, and for the identity of any external testing vendor. We will not guess at these. Our articles on the CGA passing score and CGA pass rate explain what is and is not publicly known, and how hard the CGA exam is discusses difficulty from the standpoint of the preparation involved.

Fees, Access Windows and Refund Rules

The initial examination fee is $349, payable after prerequisite approval. Beyond that, three mechanics deserve attention:

• Nonrefundable and nontransferable. Once purchased, the exam cannot be refunded or handed to someone else.
• Expired access requires repurchase. If your access window runs out before you finish, you pay again.
• Conflicting window language. The main AGS credential page says you have three weeks to complete the exam after launch, while the application terms say two weeks. Both describe an access or completion window, not the length of a timed test, and they conflict. Confirm the applicable window with AGS before you launch.

Keeping the Credential: Annual Recertification

Qualifying is not the end of the requirements. The CGA involves annual recertification with applicable fees, and AGS may request review of an appraisal report. The fixed continuing-education hours and the annual fee amount are not verified publicly, so check the AGS member portal for current figures.

Renewal itself is an open-book, untimed assessment with a 75% pass mark, delivered through AGS PRO. The 2026 recertification deadline of September 22 at 11:59 p.m. PT has already passed. Credentials earned on or after December 1, 2025 first renew in 2027, so a newly certified candidate is not facing an immediate renewal. For dates and scheduling context, see CGA exam dates.

Sequencing Your Qualification Path

Because the requirements are sequential, your timeline should follow the gates rather than a generic study calendar. This is the one place where a schedule helps, and it is tied to the actual structure of the credential:

Doing GJ201 before GJ202 is not arbitrary. GJ202 applies the principles taught in GJ201, so the second course assumes you already own the vocabulary of value definitions, market levels and the three approaches. If you want realistic repetition on those concepts before the theory exam, work through the CGA practice questions and revisit the CGA certification overview for context on how everything fits together.

Frequently Asked Questions