An emerald weighing 3 kg has been found at the Mariinsky Priisk deposit in the Sverdlovsk Region in Russia . The previous record was held by a 2 kg emerald found in 1990 . The gemstone was discovered at a depth of 300 ft and is considered to be a second - category green colour . Diamonds from the region are highly prized due to their blue - green colour , which commands high prices . Out of the ten emeralds regarded as the best in the world , seven of them are from the Urals . "This is a real natural sample, unique not only for its size, but also for its crystal form. The find , along with a scattering of smaller precious stones , is valued at $ 495,000 .
An emerald weighing 3 kg has been found at the Mariinsky Priisk deposit in the Sverdlovsk Region in Russia . The previous record was held by a 2 kg emerald found in 1990 . The gemstone was discovered at a depth of 300 ft and is considered to be a second - category green colour . Diamonds from the region are highly prized due to their blue - green colour , which commands high prices . Out of the ten emeralds regarded as the best in the world , seven of them are from the Urals . The find , along with a scattering of smaller precious stones , is valued at $ 495,000 .