AboutUs Welcome to Diamond Realty Investments, a national leader in the investment and development of Multifamily, Student Housing, Senior Housing, Medical Office and Industrial and Data Center real estate. Specializing in joint venture partnerships, Diamond Realty is the real estate investment arm of Mitsubishi Corporation. To date, the firm has invested in more than 200 properties, with total acquisition and development costs exceeding $12.6 billion. For over 30 years, Diamond Realty has partnered with the nation’s leading developers to create best-in-class living and working environments. As we continue to grow, we invite you to join us as a long-term joint venture partner in expanding our investment and development portfolio. In July 2024, Diamond Realty Investments Inc. merged with Diamond Realty Management America Inc. Since then, Fund Advisory Services has served as a U.S. real estate asset management platform supporting investment funds managed by our Japanese affiliate, Diamond Realty Management Inc.