The National Gem Collection
National Museum of Natural History (U.S.), Jeffrey Edward Post, Chip Clark (Photographer)
"The National Gem Collection" offers a complete overview of the world of gems, focusing on the more than 10,000 superlative gemstones and jewelry pieces in the National Museum of Natural History in Washington, D.C. Includes appendices & a glossary of gem-cutting terms
eBook, English, 1997
National Museum of Natural History, Smithsonian Institution ; in association with Harry N. Abrams, [Washington, D.C.], New York, 1997