Botswana’s President Mokgweetsi Masisi on Wednesday labeled synthetic gems a significant threat to the country’s economic foundation, as the government prepares to launch a $6-billion project to extend the life of its flagship Jwaneng diamond mine. The natural diamond market has faced challenges over the past two years due to rising consumer demand for cheaper lab-grown diamonds and global macroeconomic volatility. Masisi will attend the JCK Show in Las Vegas this week, the world’s largest