This summer you'll have the opportunity to view a group of seven of the world's most rare and valuable diamonds. The diamonds will be on display at the Smithsonian's National Museum of Natural History, from June 27 through September 15. The display is possible through collaborative efforts of the Smithsonian Institution, The Steinmetz Group, and the Gemological Institute of America (GIA).
The exhibit illustrates the rainbow of colors that occurs in diamonds. All stones were graded by the GIA Gem Laboratory. The grouping includes:
- The largest fancy red diamond ever graded by the GIA, the Mossaieff Red, weighing 5.11 carats.
- The 59.60 carat Steinmetz Pink, the largest and finest vivid pink diamond known to exist.
- The vivid yellow Allnatt, weighing 101.29 carats.
- The Ocean Dream, a 5.51 carat blue-green diamond.
- A 5.54 carat vivid orange gem called the Pumpkin Diamond.
- A 27.64 carat vivid blue diamond.
- The only colorless stone in the group is the De Beers Millennium Star, a 203.04 carat D-Flawless diamond.
Smithsonian National Museum of Natural History
10th Street and Constitution Avenue NW, Washington, D.C.
Harry Winston Gallery, Second Floor
Exhibit Dates
June 27 through September 15, 2003
Exhibit Hours
Open from 10 a.m. to 5:30 p.m. every day. Special summer hours are from 10 a.m. to 7:30 p.m. every day through September 2.
Admission is free and tickets are not required.

