The National Museum of Natural History will has put the Dom Pedro Aquamarine on display. The Dom Pedro Aquamarine is the largest single piece of cut-gem aquamarine in the world. The obelisk, designed by gem artist Bernd Munsteiner, stands 14 inches tall and 10,363 carats or 4.6 pounds.
The gem was mined from a Brazilian pegmatite in the late 1980s. It is named after Brazil's first two emperors, Dom Pedro Primeiro and his son, Dom Pedro Segundo.
Photos: Jim DiLoreto (1st photo)/Donald E. Hurlbert (2nd photo)/ Smithsonian's National Museum of Natural History