Every March/kloc-0-5, gem and pearl exhibition. According to the official website of Hong Kong International Jewellery Fair, Hong Kong International Diamond, Gem and Pearl Fair and Hong Kong International Jewellery Fair will be held in Hong Kong Convention and Exhibition Center from March/KLOC-0 to March 5 every year. The contents include the exhibition of various exquisite jewelry treasures, and various jewelry raw materials brought by the Hong Kong International Diamond, Gem and Pearl Fair.