Insights

Global Gem Education Gem-A is the world’s longest-established provider of gemmology education with internationally recognized diplomas, indicating strong potential to partner with jewelry brands, retailers, and professional associations seeking accredited certification for staff.

Industry Community An international network of gem professionals and enthusiasts and published materials like Gems & Jewellery and The Journal of Gemmology offer cross-promotional and lead-generation opportunities with education seekers, trade partners, and suppliers.

Events & Conferences Recent and recurring conferences and collaborations (Gem-A Conference, partnerships with institutes) present openings for sponsorships, exhibit space, and exclusive training packages to reach high-value customers and trade buyers.

Product Suite Diverse offerings including Diploma in Gemmology, Diploma in Diamonds, membership programs, and a shop for instruments create multiple upsell paths for corporate training, staff certifications, and procurement of gemmological tools.

Financial Scale Revenue in the high hundreds of millions and a sizable employee base suggest capacity for enterprise collaborations, sponsored programs, and long-term education contracts with jewelry houses, retailers, and gemological labs seeking standardized certification.

Similar companies to Gem-A

Gem-A Tech Stack

Gem-A uses 8 technology products and services including Hotjar, cdnjs, Open Graph, and more. Explore Gem-A's tech stack below.

  • Hotjar
    Analytics
  • cdnjs
    Content Delivery Network
  • Open Graph
    Content Management System
  • oEmbed
    Dev Tools
  • imagesLoaded
    Javascript Libraries
  • reCAPTCHA
    Security
  • Animate.css
    UI Frameworks
  • HTTP/3
    Web & Portal Technology

Media & News

Gem-A's Email Address Formats

Gem-A uses at least 1 format(s):
Gem-A Email FormatsExamplePercentage
First@gem-a.comJohn@gem-a.com
53%
First.Last@gem-a.comJohn.Doe@gem-a.com
41%
FirstLast@gem-a.comJohnDoe@gem-a.com
6%

Frequently Asked Questions

Where is Gem-A's headquarters located?

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Gem-A's main headquarters is located at 21 Ely Place London, England ec1n 6td United Kingdom. The company has employees across 4 continents, including EuropeNorth AmericaAfrica.

What is Gem-A's official website and social media links?

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Gem-A's official website is gem-a.com and has social profiles on LinkedIn.

What is Gem-A's SIC code NAICS code?

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Gem-A's SIC code is 8299 - Schools and Educational Services, Not Elsewhere Classified NAICS code is 6114 - Business Schools and Computer and Management Training.

How many employees does Gem-A have currently?

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As of May 2026, Gem-A has approximately 68 employees across 4 continents, including EuropeNorth AmericaAfrica. Key team members include Coo: N. P.Editor-In-Chief: B. L.Director Of Development: L. D.. Explore Gem-A's employee directory with LeadIQ.

What industry does Gem-A belong to?

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Gem-A operates in the Professional Training and Coaching industry.

What technology does Gem-A use?

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Gem-A's tech stack includes HotjarcdnjsOpen GraphoEmbedimagesLoadedreCAPTCHAAnimate.cssHTTP/3.

What is Gem-A's email format?

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Gem-A's email format typically follows the pattern of First@gem-a.com. Find more Gem-A email formats with LeadIQ.

When was Gem-A founded?

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Gem-A was founded in 1908.

Gem-A

Professional Training and CoachingEngland, United Kingdom51-200 Employees

Gem-A is a long-established provider of gemmology education and related professional services based in London, United Kingdom. Since 1908, it has offered diplomas in gemmology and diamonds, positioning itself within the professional training and coaching sector for the gem and jewellery industries. The organization supports a global community of gem professionals and enthusiasts by upholding high educational standards, enabling graduates to pursue fellowship or diamond membership within its affiliated associations, and by offering access to instruments, membership opportunities, and scholarly publications.

Section iconCompany Overview

Headquarters
21 Ely Place London, England ec1n 6td United Kingdom
Website
gem-a.com
SIC Code
8299 - Schools and Educational Services, Not Elsewhere Classified
NAICS Code
6114 - Business Schools and Computer and Management Training
Founded
1908
Employees
51-200

Section iconFunding & Financials

  • $100M$250M

    Gem-A's revenue is estimated to be in the range of $100M$250M

Section iconFunding & Financials

  • $100M$250M

    Gem-A's revenue is estimated to be in the range of $100M$250M

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