The genuine wool or silk is expensive because this is mainly for the fabric. In the current market, the common materials for the scarves could be cashmere, silk, polyester, and more. The natural fabrics, such as wool or silk, are usually more expensive than the man-made materials.
The Korean style scarves are relatively expensive because of the design and style. In addition, those Korean style scarves are hot among the young people so the demand is huge and the price is good as well.
Although the traditional scarves have a larger size, colorful design, and thick fabric, the price is relatively cheap. The reason is that the production process is relatively simple and mature. The pashmina scarves are one of the examples.
Another price factor is the size of the scarves. Usually you could find the scarves at different prices but the same style and fabric. The only reason for that is the different size. When you search online to do the compare shopping, you should pay attention to the size