A staff member shows an emerald brooch during the preview of Christie's Hong Kong 2015 spring season in Hong Kong, south China, May 28, 2015. The auction will be held from May 30 to June 3. (Photo: Xinhua/Li Peng)
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A staff member shows an emerald brooch during the preview of Christie's Hong Kong 2015 spring season in Hong Kong, south China, May 28, 2015. The auction will be held from May 30 to June 3. (Photo: Xinhua/Li Peng)
