The Philippine Diamond Tower was a proposed broadcast and observation tower to be built in the former Manila Seedling Bank property in QC CBD Triangle Park- North Triangle, Quezon City, Metro Manila, Philippines.

The groundbreaking for the tower was initially scheduled to take place last October 12, 2014, in line with Quezon City's 75th foundation anniversary.

[2] The tower's height was planned to be at 612.0 m (2,008 ft), to signify the country's Independence Day which is celebrated annually on June 12.

[4] A city ordinance was planned to be enacted to support the development of the tower.

[5] In February 2016, the Japanese government was reportedly interested to invest in the project through The Corporation for the Overseas Development of Japan's ICT and Postal Services with a local subsidiary.