Amazing course. Gem-A is the definitive source for everything gems ( as they have been around the longest) and this course was top tier. Its structured really well and I loved the specific gem section... See more
While we don't verify specific claims because reviewers' opinions are their own, we may label reviews as "Verified" when we can confirm a business interaction took place. Read more
To protect platform integrity, every review on our platform—verified or not—is screened by our 24/7 automated software. This technology is designed to identify and remove content that breaches our guidelines, including reviews that are not based on a genuine experience. We recognise we may not catch everything, and you can flag anything you think we may have missed. Read more
See what reviewers are saying
The content was good but there were three of us from my workplace signed up at the same time and two of us had trouble registering & starting the coursework. I learned and enjoyed the content after I... See more
The course is worth taking in person. You will learn all about gems and how to observe gem material. The exam is intensive. Start studying right away for the exam, a week or two of review is not en... See more
Gemintro has excellent topics and well explained with good pictures provide clearly understanding and the verbiage excellent for the beginners it worth to attend this course a new way to learn abou... See more
Company details
- Training Centre
- Adult education centre
- Career and Education Provider
- Educational institution
- Special education school
Written by the company
Discover Gem-A - the world's longest established provider of gem education. Study gemmology worldwide - in-person or online. Start your journey today.
Contact info
21 Ely Place, EC1N 6TD, London, United Kingdom
- 020 7404 3334
- webadmin@gem-a.com
- gem-a.com
Best and well designed program!
The Trustpilot Experience
Anyone can write a Trustpilot review. People who write reviews have ownership to edit or delete them at any time, and they’ll be displayed as long as an account is active.
Companies can ask for reviews via automatic invitations. Labeled Verified, they’re about genuine experiences.
Learn more about other kinds of reviews.
We use dedicated people and clever technology to safeguard our platform. Find out how we combat fake reviews.
Learn about Trustpilot’s review process.
Here are 8 tips for writing great reviews.
Verification can help ensure real people are writing the reviews you read on Trustpilot.
Offering incentives for reviews or asking for them selectively can bias the TrustScore, which goes against our guidelines.







