Oriental Rugs
Every knot tells a story. But not every rug that looks old, is old.
Specialised module, built on data from decades of auction results and expert knowledge.
The silent language of the rug
The market for oriental rugs is flooded with machine-woven reproductions, chemically aged imitations and incorrectly attributed pieces. A hand-knotted Persian rug from the 19th century and a contemporary reproduction can look identical at first glance. Yet the differences are profound and utterly determine value. A finely knotted Isfahan rug from the late 19th century with quality wool and natural dyes commands prices ranging from €5,000 to €15,000 depending on condition and size, while a contemporary machine-made reproduction of identical visual design sells for €200 to €500. The authentication gap is crucial for any collector or dealer. The market demands an objective standard, one built on technical analysis rather than visual approximation. Knot density is the primary diagnostic tool: a quality Isfahan will show 150-300 knots per square inch (KPSI), with some exceptional examples exceeding 400 KPSI. The knots must be hand-tied with irregular spacing, the human hand cannot achieve perfect uniformity. Wool quality reveals itself in the fibre structure under magnification: genuine centuries-old wool develops a patina of biological degradation. The colours must show gradative transitions typical of natural dyes like madder (reds), indigo (blues), and walnut (browns). Synthetic colours, introduced in the 1870s-1880s, display uniform saturation and fade in fundamentally different patterns than natural dyes. These technical markers separate authenticity from deception.
AntiqBot speaks the language of the rug. Knot density, wool quality, natural versus synthetic dyes, pattern style and border finishing, each element contributes to identification.
For those who do not speak the language of the rug, all knots are equal.
Origin is everything. Persian rugs from Isfahan, Tabriz, Kashan and Heriz each have their own technical characteristics and price ranges. A quality Isfahan: €5,000 to €20,000. A Tabriz, known for finer knotting: €3,000 to €12,000. Caucasian rugs (Kazak, Shirvan) have a more robust structure and fetch €2,000 to €8,000. Turkish Oushak rugs have a looser weave and more distinctive drapery: €800 to €4,000. A more obscure Baluch from Afghanistan: €600 to €2,000. The AntiqBot analysis places each rug in its correct origin and price category. Importantly, dye analysis is one of the most reliable authentication methods. Natural dyes such as madder (red), indigo (blue) and walnut (brown) age in a biologically predictable way, fading gradually and evenly. Synthetic aniline dyes, which only became available after 1856, show a different ageing pattern: they fade patchily and unevenly. A rug claiming to be 19th century but containing synthetic dyes from after 1920 is not what it appears to be.
Every element tells its part
Origins AntiqBot recognises
How to photograph a rug
Both front and back are needed. Lay the rug flat on a neutral surface. Photograph the front completely and take a close-up of a corner.
Photograph the back, the knots are visible there and tell more than the front. Note the dimensions.
Questions about oriental rugs
How do I distinguish a hand-knotted rug from a machine-woven one?
Check the back: hand-knotted rugs have irregular knot variations and a unique pattern structure. Machine weavings are perfect grids. Also note weakened edges and uneven row spacing, characteristic of handwork.
What determines the value of a Persian rug?
Four factors: origin (Isfahan commands higher prices than Tabriz), age (19th-century > 20th-century), condition (unrepaired is premium), and knot density (Heriz: 80-120 knots per cm²; Tabriz: 200-400 knots per cm²). A good Isfahan 1.8x2.5m from circa 1920 reaches €5,000-€15,000.
How do I identify natural versus synthetic dyes?
Natural dyes (madder-red, indigo-blue, walnut-brown) show gradative tone variations and colour intensity alteration. They fade characteristically and without blotching. Synthetic colours are uniform and fade in a probabilistic pattern (evenly across the whole fabric).
What is a "chemically aged" reproduction?
These are new rugs using old techniques, but artificially aged with acids, bleach, or UV exposure. AntiqBot detects this by analysing knot wear patterns, fibre quality, and colour consistency. True patina is biological; chemical aging leaves traces.
What should I look for in an antique Oushak rug?
Turkish Oushak rugs (19th-20th century) use woollen warp and more open knotting structure than Persian. This gives more draped character. Price range for 2x3m vintage Oushak: €800-€3,500 depending on condition and pattern complexity.
Are Bokhara and Bukhara the same region, and how does this affect rugs?
Yes, both spelling variants refer to Bokhara (Central Asia, now Uzbekistan). Bokhara rugs feature characteristic "gul gul" (flower-in-square) patterns. These are highly collectible. An antique Bokhara 1.5x2.5m: €2,000-€6,000.
How can I tell if a rug has been over-restored or heavily repaired?
Obvious repairs in the pile, reweaving of pattern areas, or major sections replaced with newer wool will show as uniform bright colour in otherwise faded contexts. Re-dyed sections appear artificially bright or distorted in hue. AntiqBot identifies restoration work which typically reduces value by 30-50% depending on repair extent and visibility. Honest assessment of condition is crucial for fair valuation.
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AntiqBot offers an AI-driven indicative analysis. This is not an official valuation and does not replace professional advice.