His and Hers 3 PCS Couple Round Cut CZ Engagement Ring Set and Men s Matching Two Tone Black Stainless Steel Wedding Band. Women s Ring Set features ONE of 5x5 mm(Approx. 0.4 carat) Round-cut CZ stone Prong-set in the center. There s also one matching black IP CZ band with this wedding set. Men s High Polished Two Tone Black Ion Plated Stainless Steel Band With Etched Edges. This collection Black Ion Plating (IP) ring over stainless steel has the unique finish created by a specialized process that fuses black color to the base metal (stainless steel) in a vacuum environment. This will ensure an extremely durable finish.