Dom Pedro aquamarine was cut from a 100-pound crystal that was mined in the late 1980s. It weighs around 4.6 pounds, making it one of the largest aquamarine gemstones in the world.

WASHINGTON – The world's largest cut aquamarine gem will soon go on display in its new home at the Smithsonian's National Museum of Natural History. The museum will unveil the obelisk-shaped Dom ...

WASHINGTON (AP) -- The world's largest cut aquamarine gem will soon go on display in its new home at the Smithsonian's National Museum of Natural History. The museum will unveil the obelisk-shaped ...

The largest single piece of cut-gem aquamarine in the world is going on permanent exhibition from Thursday in Washington alongside the Hope Diamond and Marie Antoinette's earrings. Mined from a ...