Pink Stone Capital Group | 1,296 followers on LinkedIn. NYC-based real estate development and multifaceted investment firm dedicated to architecture, technology, and art. | Pink Stone Capital is focused on real estate investment and development. The organization is well capitalized, and is based in Manhattan. Over the past 10 years, Pink Stone has bought and sold over $2 Billion worth of real estate and currently owns, manages and operates a portfolio of 30 residential and commercial buildings in the Tri-State Region.