Heriz is a small city in northwestern Iran south of Tabriz in the province of Azerbaijan, and holds a great reputation for rugmaking. The tribal Heriz rugs are most renowned for being thick and heavy and their use of earth tones and geometric models. While no two carpets are identical, they tend to have an attractive similarity. Most have a large squarish medallion in black or navy set in a field more clearly, with the main colors of the rug in shades of red rust, brown or blacks with details of beige, navy. Sizes are usually large in these rugs, smaller sizes are rare for this group.
Visibility: HERIZ (Heris) rugs and carpets are the most famous Persian Rugs among collectors. The majority of HERIZ rugs and carpets have a large, single, eight-sided medallion. I should also mention that you find some tribal patterns that are made in surrounding villages such as Goravan.
Quality: The quality of HERIZ (Heris) rugs and carpets varies. Old antique HERIZ (Heris) carpets called SERAPI are very valuable and there are many buyers all around the world for antique SERAPI.
Size & Shapes: HERIZ (Heris) rugs and carpets come in different sizes, but the majority of them are mid-size (4 x 6 to 8 x 10 feet). You can also find large rugs up to 15 x 24 feet.
Color: Light red, brown and sky blue. Blue is used as a contrasting and contour color. Newer carpets tent to be rather inharmoniously colored. Brown, beige, and turquoise shades indicate older pieces.
Texture: Soft wool; thin, tight pile.
Foundation: HERIZ (Heris) rugs and carpets have cotton warp; weft is either cotton or wool.
Knots: Weavers in HERIZ (Heris) use Turkish knots. The quality of the carpet depends upon the number of knots, which varies, but averages around 120 KPSI (30 RAJ).