Damascus steel is a very popular metal due to its wavy pattern forged in the steel. Damascus steel is made from two different steel alloys forged together. It is very beautiful and an excellent ring blank material. These blanks have not been acidly etched, so you can do that to your liking.
Rings are available in standard 8mm or thinner styles of 6mm and 4mm.
They are inherently interesting! Very durable, too!