Very Large Checkerboard Aquamarine Sure to become a statement piece if mounted as a pendant, this attractive aquamarine, most likely from Brazil, displays a rich blue unenhanced color, made all the more beautiful by its checkerboard faceting and fine luster. Weighing approximately 243.0 carats and measuring 30.0 x 25.0 x 19.0mm
This bluish-green #aquamarine was given to former First Lady Eleanor Roosevelt. The rough weighed a staggering 1.3 kilograms that yielded two gems when cut. The largest, a rectangular step cut stone weighing 1,298 carats, has an interesting political history. Courtesy of The Franklin D. Roosevelt Presidential Library and Museum, Hyde Park, New York.
The Devonshire Emerald, named after the 6th Duke of Devonshire, its recorded value is 1,386 carats. It is a terminated hexagonal-shaped crystal. It is an exceptional deep-green emerald, with perfect transparency in certain areas, but heavily flawed in other areas. The emerald had a reputation as the largest and finest uncut emerald in existence. It now sits in a well-protected vault in the Natural History Museum in London.