In this case, whatever was good luck for me was bad luck for someone else. I feel badly for (I assume a her). I did make an effort to contact the company, but they probably have hundreds of workers and high turnover added to the fact they aren't going to make an effort to find a needle in a haystack.
I hope this wasn't a sentimental item for the person. At first I thought it might be some kind of contest, but I hadn't heard of one and that would be a strange item to include in a bag - someone might take it for a drop and put it in their mouth.
Just a nice addition to my costume jewelry collection.