The exhibition of North America's largest known, gem quality, natural uncut diamond, the iconic Foxfire Diamond in the Harry Winston Gallery at the Smithsonian's National Museum of Natural History in Washington has been extended till April 2 on popular demand, the organisers have announced.

The 187.63 carat stone was found in the Diavik Diamond Mineburied deep beneath a frozen lake in a remote part of Canada. It also has an unusual shape and a unique luminosity with a singular glow that causes the diamond to appear to actually emit light.

When it was discovered, Diavik officials described the diamond as a “rare, really rare find”. They said it was a miracle that it was found and said this was on account of its unusual shape.

The Foxfire is named after an aboriginal description of the northern lights as a flickering foxtail. It was purchased at auction by an investor and has subsequently been displayed at difference locations. The stone was first unveiled in London's Kensington Palace in 2015 and has been recently displayed in Washington. After April 2, it will continue its tour around the world.

Pic caption: The Foxfire diamond
Courtesy: Smithsonian