These carpets are knotted by hand in workshops in the city of Nain, in the central region of Persia, near Isfahan. They are usually very light colors with a basic whitish or bluish color and a large medallion in the center. Great density of knots and first class materials, with which high quality carpets are obtained. They are manufactured in most sizes and are among the most beautiful carpets in the world, so they are also the most appreciated by collectors.