Hand-Knotted 9x12 Persian Rug: Export Sourcing from Tabriz and Heriz

The Persian carpet is the export category where authenticity is everything and where a buyer’s reputation depends on getting provenance, knot density and age verification right. Unlike saffron or pistachios, where lab chemistry settles most disputes, a rug’s value is established by a combination of structural inspection, weave analysis, dye identification and documentary provenance — and the penalty for getting it wrong is not a shipment rejection but a reputational one. This page is the sourcing framework Palude applies to every 9x12 Persian Rug Hand-Knotted order, from contemporary Tabriz workshop production to Antique Pre-1900 Heriz Rug pieces for gallery clients.

The 9x12 Persian Rug Hand-Knotted specification

A 9x12 foot (approximately 274 x 366 cm) hand-knotted Persian rug is the standard large-format size that international galleries and interior design buyers request most often. The 9x12 format is large enough to anchor a living room or a hotel lobby, small enough to ship rolled in a single crate, and — critically — large enough that the knot density, the drawing and the dye work are all clearly readable to a trained inspector. A 9x12 rug cannot hide its construction the way a 2x3 prayer mat sometimes can.

When we source a 9x12 Persian Rug Hand-Knotted for a buyer, the specification sheet we issue includes: dimensions to the centimetre (hand-knotted rugs vary by 2-4 cm from the nominal size), knot density in KPSI (knots per square inch), foundation material (cotton, silk, or wool on wool), pile material and pile height, city or village of origin, approximate weaving time, age for vintage and antique pieces, and a dye analysis summary. The buyer signs off on this spec sheet before we ship. The spec sheet travels with the rug — it is the document a gallery’s own client will eventually want to see.

400 KPSI Hand-Knotted Persian Rug: what the number actually means

Knot density is the single most-quoted and most-misunderstood metric in the Persian carpet trade. 400 KPSI Hand-Knotted Persian Rug is a genuinely high density — it places the rug in the upper tier of Tabriz city production and comparable to the better Esfahan and Qum workshop pieces. For context, a tribal Qashqai rug may sit at 100-150 KPSI, a good Tabriz at 200-300, and the finest silk Qum pieces at 500-700+.

What the number means structurally: at 400 KPSI, the weaver has tied roughly 576,000 knots in a single square foot, and a 9x12 rug at that density carries around 6.2 million knots. At a sustained tying rate of roughly 8,000-10,000 knots per skilled weaver-day, that is 18-24 months of one weaver’s working life on the loom. This is why a genuine 400 KPSI Tabriz is priced where it is — and why a “400 KPSI” rug offered at a fraction of that price is almost always a misrepresented 200 KPSI piece, or worse, a machine-assisted loom product.

We verify KPSI in one of two ways. For contemporary workshop production, we count knots directly on the back of the rug across a measured square inch, photographed, and the photo is attached to the spec sheet. For antique and vintage pieces where the back is delicate, we count on the face using the symmetric/asymmetric knot visibility method and document the method used. We do not quote a KPSI we have not measured.

Antique Pre-1900 Heriz Rug: provenance and age verification

The Antique Pre-1900 Heriz Rug is a distinct category within Persian carpet sourcing. Heriz, in the Azerbaijani-speaking northwest of Iran, produced a characteristic geometric medallion rug on a wool foundation with a distinctive apricot-to-rust palette from natural dyes. Pre-1900 Heriz pieces, sometimes called “Serapi” in the older trade literature, are prized for the depth of their natural-dye colours — a depth that comes from the madder root and indigo dyeing traditions that largely disappeared from Heriz production after the introduction of synthetic dyes in the early 20th century.

Age verification on a pre-1900 piece is not a matter of reading a label. It is a combination of: dye analysis (natural vs synthetic, with synthetic dyes indicating a post-1880-1900 date depending on the dye family), foundation inspection (cotton foundations became common later; pre-1900 pieces are typically wool-on-wool), handle and patina (a genuinely old rug has a softness in the wool that comes from decades of washing and walking), and drawing style (the Heriz medallion evolved measurably across generations). For high-value antique pieces we commission a written age-opinion from an independent Iranian appraiser and attach it to the export documentation.

The export of antique rugs from Iran is subject to the Iranian Cultural Heritage Organization’s review. Pieces above a defined age threshold require an export permit, and certain categorically protected pieces cannot leave the country. This is not a workaround-able regulation — it is enforced at customs, and a rug seized for lacking a permit is not returnable. Palude handles the permit application as part of the sourcing workflow and will not quote a piece for export that we cannot legally ship.

Tabriz Silk Prayer Rug: the small-format high-value niche

The Tabriz Silk Prayer Rug is a different buyer entirely from the 9x12 volume buyer. These are smaller pieces — typically 4x6 feet or smaller — woven entirely or substantially in silk, often with a silk foundation as well as a silk pile. They are bought by collectors, by galleries serving collectors, and occasionally by high-end interior designers for statement installations. The value per square foot is several multiples of a wool rug, which means the authentication burden per piece is also higher.

For Tabriz silk prayer rugs we provide: a knot count on the face (typically 400-700 KPSI), a burn test confirming silk (not viscose or artificial silk, which are sometimes substituted), a foundation material confirmation, and a city-of-origin opinion. The Silk Foundation Wool Pile Persian Rug is a related and common Tabriz construction — silk warp and weft for crisp drawing and durability, wool pile for warmth and cost — and we document the foundation/pile split explicitly because it materially affects both value and care instructions.

Authentic Handwoven Vintage Persian Rug: the mid-market volume play

Not every buyer is sourcing antiques. The Authentic Handwoven Vintage Persian Rug — typically 30-60 years old, wool-on-cotton, in the 200-300 KPSI range — is the workhorse of the international Persian carpet trade. These are the rugs that stock design-showroom floors, hospitality projects, and online rug retailers with a genuine-handmade value proposition. The buyer’s risk here is not forgery (a 40-year-old rug is not being faked) but misrepresentation: a rug described as Tabriz that is in fact a Heriz-region village weave, or a rug described as “vintage” that is a 10-year-old chemically washed piece.

Our vetting for vintage volume buyers is structural. We confirm the rug is hand-knotted (not machine-loomed, which is the most common misrepresentation at the lower end of the vintage market), we identify the weaving region from the drawing and the knot type, we assess the condition and any restoration work, and we photograph the back, the face, and any repaired areas. For container-load vintage orders we ship a representative sample batch first and hold the balance against the buyer’s sample approval.

Packaging, crating and shipping

Persian rugs ship rolled, face in, wrapped in acid-free tissue and breathable cotton, then crated in wooden export crates with the rug suspended on internal bars so the roll bears no weight. For 9x12 and larger pieces the crate is forklift-ready. Air freight is standard for high-value single pieces; sea freight in LCL or FCL consolidation is standard for vintage volume orders. Transit insurance is arranged through a London-market specialist marine fine-art policy, not general cargo insurance — the difference matters at claim time.

Documentation for Persian carpet export

Every Palude carpet export ships with:

• Certificate of Origin from the Iran Chamber of Commerce, naming the weaving city/region.
• Cultural Heritage export permit where the piece’s age requires it.
• Independent appraisal / age opinion for antique and high-value pieces.
• Spec sheet with dimensions, KPSI, materials, age and condition.
• Photographic set: face, back, detail, and any restoration.
• Packing list and commercial invoice matched to the bill of lading.

Buyers importing carpets alongside other Iranian export goods should note that carpet documentation is handled by a different customs line than food or petrochemical exports. If you are running a mixed container — for example, carpets with bulk Super Negin saffron for European importers — we separate the documentation streams at origin to avoid destination clearance friction.

Starting a carpet sourcing engagement

Carpet sourcing is the slowest of our verticals because authentication cannot be rushed. For a single 9x12 or antique piece, expect a 3-6 week window from inquiry to ready-to-ship, longer if a Cultural Heritage permit is required. For vintage volume orders, the timeline depends on whether we are curating from existing stock or commissioning a workshop production run.

The first step is a written brief: size range, knot density target, age category (contemporary / vintage / antique), palette preference, budget per piece or per container, and destination country. We respond with a curated shortlist or a workshop proposal, with photographs and spec sheets, and a quote in USD FOB Bandar Abbas or CIF your destination port. To begin, request a sourcing quote and our carpet desk will pick up the file. For the broader context of importing from Iran, our Iran export documentation checklist for international buyers covers the document set carpet buyers should expect alongside the carpet-specific permits.