Personalized JewelryTungsten MATEO RING TC25The Brushed Band Ring is made from a blend of high-grade tungsten metal and forged carbide. Its sleek design makes it a perfect choice for any finger, while the integrity of its materials lends it enough weight to be worn around the thumb. Dimensions:Width - 8 mm Tungsten carbide rings are made from chemical compound tungsten and carbon atoms. ... Tungsten rings have became a popular ring of choice because of the hardness. It is much harder than diamonds and solid gold rings. It also is 10 times less likely to scratch than any-other rings.