Hi Theresa. I would look at it as two separate things.
1) Privacy policy. This is about your visitors personal information and how it is going to be used. My favorite tool for this is from
DMA and it walks you through a series of questions to generate the text you need.
2) Terms of service. This is about your visitors making a purchase and what they should expect. For example ... any guarantees, return policies, shipping terms, credit card refunds, etc. For this one, I would search google or another search engine for [jewelry and terms of service]. Get an idea what others are doing, then customize one for your site based on your purchasing policies.