I bought this ring to get the feel of this cut.  As we are looking into buying real diamond rings for 10 year anniversary.  It blackened the first week i suppose reaction to skin oils is what the manufacturer said.  They did reimburse me for the ring.  However I cleaned it with baking soda and vinegar it looks a bit scratched but still looks very nice.  The middle zirconia is big so it does look a bit fake.  Great ring for the price.