Gambling terms, explained straight

Online Gambling & Industry

Gli certification diamond

The GLI certification diamond is the trademarked Gaming Labs Certified mark that a manufacturer can display on products GLI has confirmed meet its published standards or regulatory requirements.

Also called
Gaming Labs Certified mark; GLI Certified Mark13
Applies to
Certified gaming products and products in jurisdictions where GLI evaluates conformance to a GLI standard or regulatory requirements13

Key points

  • GLI evaluates a product against relevant conformance criteria; if it meets them, GLI permits the customer to use the Gaming Labs Certified mark to advertise that product.13
  • The mark indicates the product has been tested and certified by GLI.23
  • It is not a specific numbered standard like GLI-19 or GLI-33; it is the general certified mark used across applicable GLI requirements.3

Where this term is used

Not the same as

  • Gli 19 certification — a specific GLI standard and certification category, not the general certified mark
  • GLI-33 certification — a specific GLI standard and certification category, not the general certified mark
Online GLI certification Covers the underlying certification process or result, of which the diamond is the advertising mark. Online iGaming Explains GLI as the testing laboratory that issues the certification diamond. Online Ecogra certification Another independent testing and certification body for gambling products. Online Gli-11 A specific GLI standard for random number generators, not the general certified mark. Online KYC meaning Know Your Customer checks, a separate regulatory requirement from product certification. Online MGA licence An MGA licence is a permit issued by the Malta Gaming Authority

Sources

  1. [PDF] GLI Product Certification Scheme - Gaming Laboratories International gaminglabs.com Defines the Gaming Labs Certified mark and its use in product certification.
  2. Show Your True Colors with the “Gaming Labs Certified®” Mark - GLI gaminglabs.com States that the mark indicates testing and certification by GLI.
  3. GLI Certified Mark FAQs - Gaming Labs International gaminglabs.com Provides FAQs on the GLI Certified mark, including its application and distinction from numbered standards.

Sources are drawn from regulators, universities and published research, and each one is labelled with what it actually is — a preprint is not called a paper. Bookmaker and affiliate pages are never cited here, because a page that sells betting is not a neutral authority on it.

Written and maintained by Ellis Warrender, writer and maintainer.

Last updated 28 July 2026. Spotted an error? Tell me and it gets fixed and logged on the corrections page.