What is silk on silk and why does it cost so much

Most people who ask this question already suspect the answer has something to do with the material. They are right, but the material is only part of it. The fuller answer involves knot counts, production time, the hands that made it, and a tradition of weaving that has no modern equivalent.

Start with the silk itself. Carpet silk is not the same as fabric silk. The fibres used in the finest Iranian and Kashmiri silk carpets are drawn from silkworm cocoons and processed to a fineness that allows them to be spun into threads thin enough to tie thousands of knots per square inch. The yarn has a natural lustre that wool cannot replicate, a quality that causes the pile to reflect light differently depending on the angle from which you view it. Stand at one end of a Qum silk carpet and it reads as deep navy. Walk to the other side and the same carpet appears lighter, almost luminous. This is not a trick of photography. It is the nature of the material.

Now consider the knot count. A well made wool carpet from Afghanistan might have 60 to 100 knots per square inch. A fine Pakistani wool piece might reach 300. A Qum silk carpet typically starts at 400 and goes considerably higher. The finest pieces from Qum and Isfahan reach 800, 1,000 or in exceptional cases 1,800 knots per square inch. Each knot is tied by hand, trimmed by hand, and inspected before the next row begins. At 1,000 knots per square inch, a carpet measuring 6 by 9 feet contains approximately 7.7 million individual knots. At a pace of roughly 10,000 knots per day for a skilled weaver, that is two years of continuous work for one person, or one year for two weavers working side by side.

This is why silk on silk carpets cost what they cost. Not because of the name on the label or the city of origin, though both matter. But because the object in front of you represents years of skilled human labour, carried out at a level of precision that no machine has replicated and likely never will. The looms used to produce these carpets have not changed significantly in centuries. The design is read from a hand drawn cartoon pinned above the loom. Each colour change is called out by a master weaver. The process is entirely human from start to finish.

The phrase silk on silk refers specifically to carpets where both the pile and the foundation are silk. This distinguishes them from silk highlight carpets, where wool forms the main pile and silk is used only to trace the outlines of motifs, adding definition and sheen without the full cost of an all-silk piece. Silk highlight carpets are beautiful and significantly more affordable. Silk on silk carpets are in a different category entirely.

In terms of origin, Qum in central Iran is the most recognised centre of silk carpet production in the world. The tradition there dates to the early 20th century and the city produces some of the most technically precise handmade objects anywhere. Hereke in Turkey and certain workshops in Kashmir also produce silk on silk carpets of exceptional quality, though the aesthetic conventions differ from the Iranian tradition. Kashmiri silk carpets tend toward denser floral compositions. Hereke pieces are known for extremely fine knotting and a more formal, courtly design vocabulary.

As an investment, silk carpets behave differently from wool. They are more fragile in the sense that they should not be placed in high traffic areas or exposed to direct sunlight for extended periods. Silk fibres are strong but fine, and they can crush under heavy furniture or fade unevenly under intense UV exposure. Properly cared for, a silk carpet holds its colour and character for generations. Many of the most valuable pieces in private collections and auction houses today are 80 to 150 years old and still in full colour.

If you are considering a silk on silk carpet for the first time, the single most useful thing to do before buying is to view it in different lighting conditions. Natural daylight, artificial warm light, and the ambient light of the room where it will live will all show the piece differently. A carpet that seems muted in a showroom may come alive under the right conditions at home. Conversely, a very vivid piece may need space and restraint in its surroundings to work well.

The value is real. The craftsmanship is real. And unlike most things you can spend money on, a silk on silk carpet from a reputable maker does not depreciate. It tends to do the opposite.

Handmade Carpet Gallery carries a curated selection of silk on silk pieces from Qum, Kashmir and Hereke, available to view in our showroom by appointment or online at handmadecarpetgallery.com.