To be totally honest I think etsy is over catered for with jewellery, and I don't know what the shops that do sell do to sell. It seems that you have to have fab photos, yet I see stors selling far more than me with terrile photos, so how does that work?
I have found that more items helps. I am working towards having 100+, but it is so time consuming!! Lots of people that have offered help have always said that 100 seems to be the magic number!
I am unsure how much all the promotion work that teams do helps, but you have to do something!!
Hope some of this helps, both you and me!!