Our rings range in quality from fashion gold and silver plated up to solid gold and 925 sterling silver. As far as turning your finger green this can happen with many different types of jewelry as it reacts with peoples skin and environment. This is not necessarily an indicator of quality and can happen with any jewelry including high valued ones. There are ways to prevent it which can be found online but one of the best ways is to remove rings when using soaps, hand lotions and hair products and always remove jewelry prior to sleeping. Keep in mind everyone has the same chance of receiving higher value rings as well.