Look for important gems and one-of-a-kind jewels at the September Hong Kong Jewellery & Gem FairBuyers headed to the Hong Kong Jewellery & Gem Fair can expect a plethora of one-of-a-kind jewels and an impressive display of loose stones at the show, coming Sept. 16–22 to the AsiaWorld-Expo and the Hong Kong Convention & Exhibition Centre. Stone vendors know there are opportunities in rocks that boast big sizes, unusual varieties, and fine clarity—or all of the above. Take designer Erica Courtney, a familiar face on the finished-goods circuit, who recently began selling loose stones through her Courtney Collection, which includes choice specimens of paraiba tourmaline, rubellite, aquamarine, and Csarite, a natural color-change diaspore found only in Turkey. “This year we are spending more money than ever on loose because consumers understand the value of gemstones a