M Never-never Men's Stainless Steel Mariner Link Titanium Necklace, 24" (Steel Black 22") Stainless Steel has increasingly grown as a popular metal choice for jewelry. Although it has a similar appearance to metal, Stainless Steel is much thicker and will not tarnish. Often made without nickel, this metal type is popular among those who may have metal allergies. Containing a more matte finish compared to silver and gold metals with stronger luster, Stainless Steel is a popular jewelry choice among mens jewelry.