Hand-Knotted Wool Ivory Classic Floral Heriz Rug. These rugs are known for their durable construction and intricate designs that feature a central medallion surrounded by bold geometric patterns.. The ivory color in the rug refers to the primary color used in the rug, which is a creamy, off-white shade. The wool used in the rug is often dyed with natural materials, resulting in a rich, warm tone.. The hand-knotting process used to create the Heriz rug is an ancient technique that involves tying individual knots around a vertical warp thread. The weft thread is then woven through the warp, creating a strong, durable foundation for the rug.. The Heriz rug typically features a thick, dense pile, which provides a luxurious texture and feel underfoot. The intricate design of the rug is achieved through the use of various colors and patterns, which are carefully woven into the rug by skilled craftsmen.. Overall, an ivory hand-knotted Heriz rug is a stunning piece of art that combines intricate design with durable construction, making it a timeless addition to any home décor..