County economies: scale and diversity

In a small county in China, a quiet revolution is reshaping a global jewelry industry. In Zhecheng, central China's Henan Province, lab-grown diamonds are produced at a fraction of the traditional cost. This phenomenon is a clear signal of how China's formidable local economies are becoming pivotal drivers of global markets. What does this county-level prowess mean for the future of global manufacturing and consumption patterns? On the show: Steve, Fei Fei & Yushan