Welcome to Luman International

The Diamond of Excellence™ (Diamond) is an elegantly simple model for leadership development and cultural design. The Diamond has been formed and perfected through 30 years of working throughout the world with leaders and teams at all levels. Implementing the Diamond creates a reality-based, passionate, smart organizations that consistently deliver top-tier results.

Our program of Leadership Development and Cultural Design™ is a powerful union of “hard” and “soft” skills. It is a thorough blend of effective principles and efficient practices that bring out the very best of human nature in a team environment.

The Diamond of Excellence™ gives you a comprehensive framework so that you will not miss any important elements in your leadership development. Other programs you may be using will fit into the Diamond framework, giving your leadership education a structure that is dynamic, comprehensive, and flexible.