The stunning tsavorite gemstone arrives at the museum with a well-documented history Jack Tamisiea The Lion of Merelani is the world’s largest square-cushion cut tsavorite gem with 177 glimmering ...

Explore the stories behind the Smithsonian’s National Gem Collection during an online program — courtesy of Mentor Public Library — at 2 p.m. Dec. 4. The program will be led by Jeffrey Post, emeritus ...

The Smithsonian has acquired an extraordinary 48.86-carat red topaz for the National Gem Collection. The Whitney Flame Topaz is one of the finest imperial, or “precious,” topaz gemstones in the world, ...

The Smithsonian’s National Museum of Natural History will put the “Lion of Merelani,” which is one of the most finely detailed colored gemstones in the world, on public view starting Thursday. The ...

From the legendary Hope Diamond to a rainbow of colorful gemstones, a multigenerational bond between the Winston family and the Smithsonian transformed the museum’s world-renowned gem collection Emma ...

Note to editors: Images of the Lion of Merelani are available here. The Smithsonian’s National Museum of Natural History will unveil the Lion of Merelani, one of the most exquisite colored gemstones ...

The jewel rested on a cushion in a small black box covered with cloth in a vault at the Smithsonian’s National Museum of Natural History. Jeffrey Post, curator of the National Gem and Mineral ...

One of the world’s largest pieces of bright-green bling is now in the hands of the Smithsonian’s National Museum of Natural History, thanks to some generous Arizona gem experts. The precision-cut, 116 ...

The Butte Public Library is gearing up for a dazzling presentation with the emeritus curator of the Smithsonian's National Gem Collection, Jeffrey E. Post. He will talk about "The Smithsonian National ...