While the finest carpets have more than a million knots and are called 90raj simple rugs still have a density of 400 000 500 000 knots 40raj.
Tabriz carpet design.
Antique hadji jallili haji jalili tabriz northwest persian 13ft 4in x 18ft 8in circa 1850.
Herati mahi motifs are used as embellishments in medallion carpets but are also used as a single design in intricately woven all over patterns.
The patterns can consist of a centrally placed medallion surrounded by arabesques weeping willows and cypresses.
Tabriz carpets use fine wool giving luster to the colors and flexibility in handling.
Antique tabriz garden of paradise carpet northwest persian 6ft 6in x 10ft 4in circa 1875.
A good tabriz has a short and rough pile.
The fineness of the carpets is categorised by the raj number which shows the number of knots in between 7 cm.
It is one of the oldest rug weaving centers and makes a huge diversity of types of carpets.
A common designation of tabriz rugs is the raj which stands for 7 cm.
The range starts at bazaar quality of 24 raj and on up to the incredibly fine 110 raj.
The categorisation refers to the knot density per square metre and thus gives an indication of the quality.
Raj is the unit of knot density.
It shows the rigidity of the rug which based on the number of strings used for the found.
The major city of tabriz located near the turkish border is the center of classically designed antique carpets in northwest persia.
Tabriz carpets are easily distinguished by an additional designation.