A model shows off the 1109 carat "Lesedi La Rona", the largest gem quality rough diamond discovered in over 100 years during a sale preview at Sotheby's auction house in London, Britain, June 14, 2016. (Photo/Agencies)
RIGHT BG
A model shows off the 1109 carat "Lesedi La Rona", the largest gem quality rough diamond discovered in over 100 years during a sale preview at Sotheby's auction house in London, Britain, June 14, 2016. (Photo/Agencies)
