RAPAPORT... The organizers of Swiss gem and jewelry show GemGen??ve have canceled this year's event as travel restrictions and health precautions have made it too challenging.The coronavirus "has made it impossible for GemGen??ve to be the interactive experience that we intend it to be," the group said Sunday.GemGen??ve will fully reimburse all exhibitors who signed up for the fair, which was due to take place in November. They will also be guaranteed a spot at the next show, scheduled for 2021. In the meantime, the organizers are looking at ways to improve the fair."As with all unexpected situations, we must make use of our creativity in order to find a way to overcome these challenges," said show founder Ronny Totah. "GemGen??ve is currently exploring various directions in order to come out stronger."Image: The entrance to the 2019 GemGen??ve show. (David Fraga/GemGen??ve)