Instruct: Classify Amazon reviews into positive or negative sentiment
Query: stone missing

Regretfully, the first time I wore this ring was in December, which is beyond the return window. The first time I wore it, I looked down as I was leaving home & noticed there was a stone missing from the setting. The prongs on the ring were not pushed down very well on any of the settings. Once I noticed the missing stone, I adjusted all the other prongs.