Take a look at the reverse side of your rug and choose a 1 inch x 1 inch area. Count both the horizontal weave and the vertical run. Multiply the two together to find the your knot density. Generally speaking, the more densely bound a rug is, the higher its quality and thus its price.

What rugs are valuable?

Silk rugs are the most valuable, particularly those that use a warp of silk and not wool or cotton. Silk has the ability to be hand spun exceptionally fine, so fine that you can hardly see it. It is also extremely strong. Silk also takes dyes well and has a sheen that is not found in wool and cotton rugs.

What are the most valuable Oriental rugs?

Silk Isfahan Rug. The Most expensive rug in the world. Ziegler Mahal Rug. The second most expensive rug. Ziegler Mahal Carpet. The third of most expensive rugs. Ushak Rug. The fourth most expensive rug. Ishfahan Rug. The 5th most expensive rug. Ziegler Mahal Carpet. Zieglar Mahal rug. Mohtashem Kashan Carpet. Portuguese Armorial.More items