Why are some oriental rugs worth much more than others that look similar?

Several things affect value that are not obvious at a glance. Age and origin matter, since rugs from certain regions, periods, and workshops are more sought after. Materials matter too, including wool quality, silk, and natural versus synthetic dyes. Knot density and the skill of the weaving affect how detailed and durable a rug is.

Condition is a major factor. Even pile, intact ends and edges, good color, and no major repairs or stains make a big difference. Two rugs with similar designs can vary greatly if one has worn areas, moth damage, or faded colors.

Size, design, and current taste also play roles, since decorating trends shift demand. Machine-made rugs that imitate traditional patterns are typically worth far less than hand-knotted ones. Because these factors take experience to judge, a qualified rug specialist or appraiser is the best source for an opinion on any particular rug.