History of diaddict DIADDICT opened a jewelry salon by appointment only in 2004, and moved to the current larger location with our wish to welcome the customers and for them to enjoy the ultimate diamonds. A blue diamond of breathtaking brilliance. A rare encounter with this precious and captivating jewel marked the beginning of DIADDICT. There was an inherent desire to own and wear this most brilliant of diamonds. It was a wondrous stone that even fascinated and enticed jewellery professionals whose eyes have seen so many other diamonds around the world. DIADDICT is Japan’s first high jewelry maison where one can find the “Cream of the Cream” of diamonds that pulsate at the core with a “life” of their own. In fact, it is said that “DIADDICT does not pursue diamonds with “life” but, rather, the highest quality diamonds with “life” are drawn to DIADDICT.” This is a testament to DIADDICT’s commitment to gather the best, attesting to its boundless passion and in-depth knowledge which has earned the company a reputation for reliability and success. Having firmly established its position in the highly exclusive rare diamond distribution industry and supported by a global network that is capable of acquiring diamonds of the highest quality, DIADDICT can offer you high jewelry that sparkles with an allure that will light the way to a beautiful life.