Stainless steel has become one of the most sought after materials in fashion as of late, and it's no wonder why. This stylish men's surgical stainless steel (Grade 316L) band contains a created 4mm princess (square) cut black onyx gemstone in a tension setting. The ring has a polished (shiny) finish. It's 1/4" (7mm) wide. Black onyx is February's or December's birthstone. Perfect as a wedding band, or just for everyday wear due to its extreme comfort!