Synthetic crystal items are displayed during the Hong Kong Jewellery and Gem Fair in Hong Kong, south China, Sept 19, 2011. A total of 3454 exhibitors from 46 countries and regions attended the five-day fair, which opened here on Monday. [Photo /Xinhua] 

Rings with Chinese Character "he", which means harmonious, are displayed during the Hong Kong Jewellery and Gem Fair in Hong Kong, south China, Sept. 19 2011. A total of 3454 exhibitors from 46 countries and regions attended the five-day fair, which opened here on Monday. [Photo / Xinhua]