Best Geometric Rugs . Add an artistic flair to your floor with a bold geometric rug. The tuscan dotted diamond trellis nursery rug delivers in both areas. Modern Shag Geometric 2x7 ( 2'' x 7'3'' Runner ) Area Rug Cubes Black from www.ruglots.com Best geometric rugs to buy in 2022. To choose your pattern, ask yourself if you want. An 8 feet x 10 feet wool rug can cost around $300, while a synthetic rug of the same size may cost half that.