How to Identify Persian Rug

Learn how to identify authentic persian rug using visual characteristics, maker marks, and expert tips. Based on 38 persian rug items in the InstAppraisal archive.

🔍Key Identification Characteristics

Visual and physical traits that help identify authentic persian rug

1 Hand-knotted pile — flip the rug over and see individual knots creating the pattern on the back
2 Irregular, slightly asymmetric patterns — no two hand-knotted rugs are identical
3 Fringe is an extension of the foundation warp threads, not sewn on separately
4 Natural dye colors that soften and harmonize over time (abrash — subtle color variations)
5 Wool pile with a lustrous sheen; silk rugs have a distinctive bright, reflective quality
6 Flexible body that drapes naturally when folded — stiff rugs may be machine-made or tufted

🔎Common Marks & Labels

Stamps, signatures, and labels to look for on persian rug

Woven signature in the border or field — the weaver's name, sometimes in Arabic or Persian script
City and region names woven into the selvedge: Isfahan, Tabriz, Kashan, Kerman, Qum
Country of origin labels sewn into the backing (required for US import since 1891)
Auction house or dealer labels sometimes attached to the back

💡Expert Tips

Tip 1

Fold the rug back on itself and look at the knots: hand-knotted rugs show rows of individual knots; machine-made rugs show uniform loops or a stiff backing fabric. The back pattern should be as clear as the front

Tip 2

Count the knots per square inch (KPSI): fold back a small section and count knots in a one-inch square. Fine rugs have 200-800+ KPSI; coarse rugs have 25-100. Higher KPSI generally means higher quality

Tip 3

Burn test a tiny fiber from the fringe: wool smells like burning hair and forms a crushable ash. Synthetic fibers melt into a hard bead and smell like plastic