A Tabriz rug/carpet is a type in the general category of Iranian carpets from the city of Tabriz, the capital city of East Azarbaijan Province in north west of Iran. It is one of the oldest rug weaving centers and makes a huge diversity of types of carpets. The range starts at Bazaar quality of 24 raj (Number of knots per length of 7 cm of the widths of the rug) and on up to the incredibly fine 110 raj. Raj are the units of knot density (it shows the fitness of the rug which based on the number of strings used for the foundation of the rug. Strings materials are usually made of cotton or silk which is used for very fine rugs).
Tabriz has one of the most diverse displays of designs from medallion, Herati/Mahi, to figural, pictorial, and even 3-d shaped rugs.
The major producers in Tabriz today include: Alabaf of Tabriz, Galibafi Nassadji Tabriz, and Miri Brothers.
Tabriz has been a large and worldwide famous carpet making center in the Iran and the world. It played a significant role in development the rich traditions of the decorative and applied arts.
The art of Tabriz carpet was in its zenith in the 12th-16th centuries. About 200 Tabriz school masterpieces of the classical or "golden" period of the 14th century are characterized by a harmonic merge of the arts of miniature paintings and weaving, by a high level of craftsmanship demonstrated by artists and carpet weavers.
The Tabriz school can be divided into 2 subgroups: Tabriz and Ardabil.
Tabriz carpets :
"Tabriz", "Heris", "Lachak-turanj", "Afshan", "Agajaly", "Dord Fasil", "Sardorud".
Different types of carpets were made here, including pile and flat-weave, with simple and complex composition. The carpet making art was passed on from generation to generation and was considered the most valued heirloom. The traditional topics for the Tabriz carpets are the ornamental patterns, with the following dominant background colors: cream, red or navy blue. The most typical for this school are rugs and carpets grouped under the common name “Lachak turanj”. In the middle of the center field and in the corners of the carpet (“lachak”)(Persian: لچک triangle) there are “turanj”(Persian: ترنج Citron). The turanj in the center of the carpet is a symbol of the Moon, and the pattern formed by lozenges with the toothed leaves on the edges symbolizes the scales of the fish, which rise to the surface of the water at midnight to admire the Moon reflection. The origin of this composition dates back to the 9th-10th centuries. Often the topics for the Tabriz carpets are drawn from the works of the great Oriental poets. The carpets often depict the scenes of falconry or images of a ferocious lion. Well known are also Tabriz carpet-pictures with images of fragments of palaces and mosques, scenes of battles. Often, in creation of this or that ornamental pattern carpet weavers were inspired by the hand-painted covers of ancient books.
Reference : wikipedia.org