The Canary Diamond is an uncut canary-yellow 17.86 carat diamond found in 1917 at what is now the Crater of Diamonds State Park in Arkansas.[1][2] It is in the collection of the Smithsonian Museum of Natural History.[3] The diamond was in the collection of civil engineer and mineral collector Washington Roebling; his son donated it, along with the rest of Roebling's collection, to the museum in 1926 after Roebling's death.[3][4][5]