Instruct: Classify Amazon reviews into positive or negative sentiment
Query: NOT PURE STERLING SILVER AS DESCRIBED

I purchased this ring as a gift for my husband (who works on the ocean). The design is wonderful and unique. However, we have purchased (and wear) numerous items made of pure sterling silver and know that they do not turn your fingers green or tarnish. This item made a green ring around his finger within hours of putting it on. Within a couple days it was already turning gray/brown on the inside from tarnishing. It is NOT pure silver and should not be sold/described as such. It is a cheap piece of jewelry. Unfortunate, because the concept and design are very charming.