Each coin has gold part which is 30mm, and jade part which is 50mm.Issued by Hong Kong Gold Coin Investment Co. Each coin has gold with color image surrounded by top quality light green jade. The five gold and jade coins bear the image of Mao Zedong, Deng Xiaoping, Jiang Zemin, Hu Jintao and Xi Jinping. Limited circulation of 5000 sets.