The Middle East, particularly Iran, is known for producing some of the world's finest Turquoise gemstones. Afghanistan, located in Central Asia, is renowned for its turquoise production. The country has rich turquoise deposits, and the Gemstone has been mined there for centuries. The Nishapur region in northeastern Iran and the adjacent Badakhshan province in Afghanistan share some geological formations and can produce similar qualities of turquoise. Turquoise is also found in smaller quantities in various other countries, including Australia, Chile, Egypt, Israel, Kazakhstan, Peru, and Russia. The quality, color, and characteristics of turquoise from these regions can vary.

The United States has significant turquoise deposits, and it is one of the world's leading producers of the gemstone. Mexico has a long history of turquoise mining, and it is known for its vibrant and high-quality turquoise. The country's most famous turquoise mine is the Cananea mine in Sonora. Other notable mining areas include the states of Durango, Chihuahua, and Zacatecas. China has emerged as a significant producer of turquoise in recent years. The Hubei Province in central China is known for its deposits of turquoise, with the Zhushan mine being one of the most prominent sources.

Iran has a long history of turquoise mining and is renowned for its exceptional turquoise gemstones. The Nishapur region in northeastern Iran is particularly famous for producing some of the finest turquoise in the world. The turquoise from this region is known for its intense blue color and beautiful matrix patterns. The Sinai Peninsula in Egypt is another region in the Middle east known for its turquoise deposits. The turquoise from this area is often referred to as "Sinai turquoise." While not as widely known as Iranian turquoise, Sinai turquoise has its own unique charm and is sought after by collectors and Jewelry enthusiasts.

The larger and smoother the turquoise stone, the more valuable it is. This precious Stone is often found in cities such as Damghan and Neishabour and can be seen in blue and sometimes pale green or yellow. Ajami and Shajari type of stone is known around the world as Neishabour turquoise stone due to its extraordinary quality and beauty. Ajami turquoise is blue and its shape is round and large. Turquoise type of tree also has streaks that have been formed due to the accumulation of turquoise seeds. The larger the size of the turquoise stone and the smoother its surface, the higher its price. The name of this stone is derived from the French word “Turquoise” meaning Turkish stone. 

The smoother and larger the turquoise, the more valuable it is. The color of these Gemstones also changes from blue-green to pale yellow. Turquoise is found in Arizona, New Mexico, USA, Australia, Afghanistan, and Iran (Neishabour and Damghan); Neishabour Ajami and Shajari turquoise are very famous not only in the country but also in the world due to its excellent quality; Ajami turquoise is round and coarse and its pure color (garlic blue) is used as the most expensive type of turquoise to make a ring.

Turkey is also known for its turquoise production. The country has various turquoise mines, and the gemstone is often used in traditional Turkish jewelry. The region of Elazig, located in eastern Turkey, is particularly recognized for its turquoise mines. This stone is found in blue and sometimes green and pale yellow color in Iran, which is known as Neishabour turquoise stone in Neishabour due to its extraordinary quality. Ajami turquoise with garlic blue color is round and large and Shajari turquoise has streaks that are composed of a community of several turquoise seeds inside the stone. 

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