Read the rug label to determine origins.The Federal Trade Commission requires dealers to list the country of origin on all labels. The prefixes Indo-, Sino- and Pak- will precede the name of Oriental patterns, stating the origin. Navajo rugs are easily recognizable by their classic tribal patterns.
Determine whether the rug is antique and handmade or machine-made. The higher-value, antique rugs are made of natural fibers such as wool. The New York Times suggests paying attention to the colors. Naturally died fibers change color when you look at them from a different angle and the colors are not brassy.
Turn the rug over to check for alterations and color continuity. Value may decrease if the rug has been altered. Color should be the same on the back as the pile. Color differences may indicate a chemical aging procedure.
Find an appraiser who has been professionally trained. Request proof of membership to at least one of the four appraisal accreditation groups. You may want to request an appraisal from two to three appraisers.