A faceted gem is a type of gemstone that has been cut and polished to create flat surfaces, known as facets. These facets enhance the gem's brilliance and sparkle by allowing light to enter and reflect within the stone. Common examples of faceted gems include diamonds, sapphires, and emeralds. The process of faceting involves precise cutting techniques to achieve the desired shape and proportions. Each facet is carefully angled to maximize light performance, making faceted gems popular in jewelry. The art of gem faceting has been practiced for centuries, evolving with advancements in technology and design.