An exhibitor displays jewelry at an exhibition preview of the "La Biennale Paris" 2019 at the Grand Palais in Paris, France, Sept. 12, 2019. The 31st edition of "La Biennale Paris" kicked off on Friday at the Grand Palais in Paris. This year's exhibition attracted over 70 exhibitors showing their pieces of antique furniture, jewelry, paintings, clocks, watches, etc. (Xinhua/Gao Jing)