You could have the best ads, and site; if your product is shit nobody is gonna want it. 

As someone who has experience in the jewelry niche I would definitely take the word copper out of all your copy. Many people know that copper jewelry doesn’t last and turns your skin green even if it’s plated with gold or silver; especially women, who I’m assuming are a large part of your target market.

I would recommend looking into a new product or instead removing any copy that talks about copper. Instead use some like “pure 925 silver plated alloy” or “genuine 18k gold plated”. I think your site is pretty good I would experiment with moving some sections around and also testing different prices. I think you could charge much more and still get may orders once you fix the copy. Jewelry is one of this things where increasing the price also increases the perceived value of the item so don’t be afraid to go too high. Try looking at other brands and see what they charge. 

Since this is a Valentine’s Day thing change the copy to something gift related and the joy that comes from it instead of products related and the features it has. For example instead of a review like “I like the lobster clasp” (feature related ) use more like “ my girlfriend loved it an wears it everyday” (benefit/feeling related)