First start by choosing any Etsy jewelry shop that has made it to the front page of Etsy ...or any Etsy sellers that you like. The first section to look at (#1) is the date that the shop joined. By this date you can calculate how many months the shop has been open.
Then, you can look at the number of sales that have been made since the start date (#2). Lastly, by looking over the items for sale (#3) you will be able to get an idea what the average price for an item is. In order to have a more in depth idea of the sales for a single shop click on the sales and have a good look at "what" is selling.
To be even more thorough, check the shop sales history and find out how many sales per day, week or month they are getting. You will be able to get a general idea of what a shop is bringing in by multiplying the monthly sales by the average sale figure. Of course it will not be exact but, you will have a general idea.
You can also look at the very first sale date to find out how long any given Etsy jewelry shop has actually been posting items and how their sales have evolved over time. For example, some shop owners are simply members, perhaps only purchasing on Etsy, long before they feel they are ready to post items for sale.
By analyzing an Etsy jewelry shop you will get an idea of how their sales growth has progressed, what sorts of products they seem to be selling more of and how they may have specifically geared their product to fit with sales trends.
This is the part where it is good to be inquisitive and ask yourself some of the following questions:
1) Has this shop experienced growth spurts?
2) Where there any changes in product, photography, descriptions during periods of increased sales?
3) Does the shop have a blog or any social networking strategies such as Face book or Twitter?
4) What do I like most about this Etsy jewelry shop?
5) What is the photographic style that is used?
6) How do I like the product descriptions?
7) How are the prices?
8) Does the shop feel friendly and inviting?
9) What are the shop policies?
10) Do I feel connected to the designer or shop owner?
11) What kind of feedback are the buyers leaving for this shop?
These are all important questions to ask in order to contemplate how to build a shop that is comprehensive and answers all the needs of a buyer.
The purpose of this exercise is not to copy any given Etsy jewelry shop but, rather to arrive at a style that fits you and to leave no stone unturned when you put forth your best work for sale.
If you would like to research the top Etsy sellers here is a site that will let you search Etsy shops by category. You can have a look at the top Etsy jewelry shops.
Below is a sample of two shops that I have observed and compared and it illustrates an interesting point on pricing verses volume. They are both "trend setting" shops but, they are simply on opposite ends of the spectrum: