National Museum of Natural History
10th Street and Constitution Avenue, NW
2nd Floor, Gems & Minerals Hall, Harry Winston Gallery Floor Plan
On view is the Cullinan Blue Diamond Necklace, featuring a bow motif with nine extremely rare blue diamonds totalling 5.32 carats and 251 additional diamonds; the bow portion can be removed from the necklace to become a separate brooch. The necklace was recently donated to the museum.