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It is the knotting, or tying of the colored yarn around the threads of the foundation that creates the pile of a carpet. The most important factor in the creation of a quality rug is its basic construction and the integrity of its principaal materials. Rugs do not need to have a high knot count to be high quality, so you should be wary of someone who tries to sell you a rug solely on the basis of knot count.Knotting is a very precise skill and it is the major factor in the look of a finished carpet. The pile is formed from various types of knots; the most common of which are symmetrical and asymmetrical.
As these diagrams illustrate, different knotting techniques are employed depending upon the geographical origin and specific use of the carpet.

CERTIFICATE OF AUTHENTICITY

Quality rugs are often accompanied by a Certificate of Authenticity, attesting to the genuine construction and materials for every rug.
The information on the Certificate of Authenticity will match any identifying signature or emblematic information on the piece itself, and certifies that you are the original owner. Should you wish to sell your rug, a Certificate of Authenticity will enhance its value.