Instruct: Classify Amazon reviews into positive or negative sentiment
Query: seems like its not real sterling silver

this ring is very pretty, fit and sizing was excellent, shipping speed was great, however, after a few weeks of wearing, the metal has a grainy texture and is turning dull. it appears that it is not real silver. i am also allergic to many other metals besides silver and i cannot wear the ring because my finger breaks out in hives. maybe the silver coat is wearing off? i am disappointed in the product and wish i would have invested in a more quality ring.