Enter the magical world of the diamond and learn about its journey from deep in ground to the most coveted jewelry! The Israel Diamond Institute (IDI) Group of Companies is a non-profit, public interest company that represents all organizations and institutions involved in Israel’s diamond industry. The Israeli Diamond Industry, diamantaires’ and diamond suppliers claim a leading position in the global market, thanks to extensive worldwide marketing initiatives, participation in leading jewelry and diamond trade shows, and hosting international conferences and delegations.