October 16, 2008 - Royal Ontario Museum Preparator Susan Ventura sets a satellite diamond beside The Incomparable Diamond inside a walk-in gem vault during setup of an exhibition titled 'The Nature of Diamonds' that opens in Toronto Ontario October 25th. The Incomparable Diamond is the worlds third largest diamond ever recorded, a 407.48 carat golden-coloured kite shaped diamond. Toronto Star/Pawel Dwulit (Photo by Pawel Dwulit/Toronto Star via Getty Images)