Opal is known as one of the most beautiful of gemstones, which can flashes in every color of the spectrum with a intensity that can even exceed that of diamond. The worthless opal stone ranges from clear through white, gray, red, orange, yellow, green, blue, magenta, rose, pink, slate, olive, brown, and black. Of these hues, the reds against black are the rarest, while white and greens are the most frequent. A few rare specimens make dazzling color flashes when turned in the light. For example, a new Opal was unearthed in the Welo district of Ethiopia freshly that took the gem world by storm. Discovered in the Welo Amhara Regional State Highland plateau 2.500 – 3.200 meters above sea level, this novel gemstone looks like a miniature underwater scene from the ocean when held against the light. Opals such as the Welo Opal can command prices per carat that rival the most luxurious diamonds, rubies and emeralds.