Emerald weighing 234 carats.
The stone has two estimates. One estimate was made in Switzerland, by an old and experienced assessor who claims that emeralds of this size, color and purity are hard to find, and therefore worth 300,000,000 €. He claims that there are only a few emeralds with such purity in the world.
Another assessment is made in Antwerp, the Netherlands. An appraiser from Antwerp stated that the price of 90.000.000 € is realistic. He also states that it is an exceptional example of an emerald.
Price: 90000000 $