Overhauled online marketing for SaaS business (legal/accounting). Total conversions improved 52%. PPC conversion rate improved 185% (2.01% to 3.69%).
Led a team of six to develop digital marketing campaigns for leading healthcare website. Generated more than 3,600 sales leads that converted to $4.8M of customer LTV.
Built a SEM program for a national chain of executive conference centers. Metrics: Achieved then maintained #1 organic keyword search engine ranking for 7 out of 10 target keywords for more than 4 years. Achieved 149% increase in total sales leads, with an average 57% decrease in CAC.
Created integrated PR and IR program that supported a successful corporate turnaround and a "deep-value" small cap firm. Market capitalization increased 400%; daily share volume increased from 50K to 500K.
If you already have retail sales, consider signing up with services like TrustPilot or Feefo. You should also connect your ecommerce site to Google Customer Reviews (via Merchant Center).
This link shows a how-to guide: https://ecommerce-platforms.com/articles/how-to-become-a-google-trusted-store.
Once you collect (hopefully) positive reviews, you can use AdWords Seller Ratings extensions which will add stars and review text into your ads.
As another person suggested, social proof is another important signal of trust. Having a large and engaged social media following is important. If your customer base is so included, Pinterest can be useful (people sharing images wearing your jewelry).
Use a reviews publishing widget to post the best reviews on your site and your other social medias channels.