A larger carpet takes more time to weave which also makes it more expensive.
How well have they succeded in combining the colours in the carpet and what kind of dyes are used in the material. If the natural colours harmonize well, this gives a higher price.
Style & origin
There are great differences when it comes to the handicraft and the quality of the material in a Persian carpet compared to a carpet from India. As well as the conditions between a workshop manufactured carpet and a carpet made by nomads.
Layout & pattern
If the carpet has an all-over motif or just fewer and smaller motifs this also affects the price. If it has a more detailed pattern, which took a long time to weave, then this will result in a higher price.
The materials that are used in the carpet and the quality on them is important when pricing a carpet. A silk carpet for example is more expensive than a carpet made of wool. The material used in the warp is also of importance.
A woven carpet takes a shorter time to manufacture than a carpet that is handmade.
What kind of knots used and the knot density is of very great importance. A carpet with high knot density commands a higher price, since it takes a lot longer time to manufacture.
An antique handmade carpet is often more expensive, but it is not the age that is decisive. An older carpet often has more charm given by time and that is hard to find in newly manufactured carpets.
If the carpet is in good condition without damages it is of course more expensive than a worn out, frayed carpet with bleached colours.
The comparison between new and older production is twisted by the fact that from the old production it is only the best carpets that are preserved.