Ask the seller if the rug was handmade. All Persian rugs are handmade and distinguished from machine-made rugs.
Find out the history of the rug from the seller, as most Persian rugs typically come with a detailed background. If the seller purchased the rug from a rug manufacturer, or it was a bulk purchase, it is most likely not authentic.
Pay close attention to the pattern on the rug. Persian rugs are precisely symmetrical; anything unsymmetrical is not authentic. Most sellers should also be capable of explaining the pattern and symbols found on the rug. For example, a lily signifies purity, while a star represents spirituality and good luck. Handmade rugs will have the same pattern in front and back.
Look for the label, indicating the country of origin. Persian rugs were originally made in Iran only, though in recent decades, the art has expanded into other countries including India, China and Pakistan. This is where the term "Oriental" carpets or rugs originated from. However, some experts still claim that for a rug to be considered a true Persian rug, it must be made in Iran.
Identify the material and weave. Parisian rugs are traditionally made from wool, with the occasional silk accessory, and have a tight weave.
Analyze the overall condition of the rug. Persian rugs do not fade easily, due to the superior dyeing process and materials. Persian rugs are known for their graceful aging process. Some people refer to them as "abrash," suggesting the natural and slightly uneven hues of natural dyes.