SuMa earrings w/ slit and .02 carat diamond in each, total carat weight: .04 ct. Earring Diameter: 10mm All Earrings have Stainless Steel Posts TeNo jewelry is made of the finest stainless steel that is free of nickel. In terms of allergic safety and high durability this material is superior to most precious metals. Experienced master goldsmiths combine the steel with diamonds, 18 ct. gold, ceramic inlays or rubber. This is how individual pieces of jewelry with an exclusive quality are made. Every single piece becomes genuinely unique.