# Double Diamond

The Design Council's framework with two diamonds, each opening to explore and closing to focus.

**Source:** “Launched in 2004, the Double Diamond has become world-renowned with millions of references to it on the web.” [Framework for Innovation (Design Council)](https://www.designcouncil.org.uk/resources/framework-for-innovation/)

See also: [Discover, Define, Develop, Deliver](/reference/glossary/discover-define-develop-deliver).

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Published 2026-10-29. Web page: https://www.mackenziebowes.com/reference/glossary/double-diamond