International Gem Tower

The International Gem Tower previously known as the Diamond tower was designed by Gary Barnett, a former Belgian diamond trader. This tower included modern office space, underground parking, a maximum-security vault and a museum. The developer promises that his tower will restore the district as a world center for the diamond trade. The developer promises this building will bring in over 520 to 1,320 new jobs.

Located in New York’s Diamond District, this 800,000sf tower is wrapped in a three-dimensional, folded glass fa├žade that creates an ever changing light play and resembles shimmering medallions with each fold. The tower’s five story podium is enveloped in a uniform, fritted plane of glass, providing a clean volume at street level.

VDA provided consulting services through construction administration for two (2) geared traction elevators for the Retail space, twelve (12) high speed gearless traction elevators for the Office levels split into mid-rise and high-rise groups, one (1) gearless service elevator accessing all levels, one (1) freight hydraulic truck lift, two (2) freight hydraulic automobile lifts, and one (1) hydraulic passenger elevator for the Gym.

Project Info

Service Type

New Construction


Extell Development Company


800,000 square feet

Project Type

Athletic, Featured Projects, Mixed Use, Offices

Equipment Type



New York, NY

Completion Year



$433.5 million