As a public health precaution due to COVID-19, all Smithsonian museums are temporarily closed. We are not announcing a reopening date at this time and will provide updates on our websites and social media.
Post, Jeffrey E., Feather, Russell, and Butler, James E. 2020. "Kimberley Diamond Acquired by the Smithsonian Institution, and Its Fluorescence and Phosphorescence Characteristics Revealed." Journal of Gemmology 37 (1):14–15.