There are all sorts of factors involved in the relevancy algorithum that are unknowns to us. Recency ie when you listed or renewed is a factor but no one knows quite where it fits in and probably never will.
Don't focus on 'why I am on page 2' and I did this and x person is on page 1 and you have no idea what they did. Focus on you and getting titles and tags as user friendly as possible and don't forget your SEO. Just keep thinking common sense ie what words or word selections would a buyer use to find this. It is all interconnected.
Some days the majority of my viewings come from outside of Etsy ie SEO and others inside Etsy ie getting those words right for both is sooo important.
Don't fret about the whys and where fors because it can eat you up. Just do the best you can on the information you have on your listings and then do what you are best at - making stuff. Jewellery is a minefield on Etsy because the base is massive. My field of supplies is huge, but not as huge, but I can find myself on key phrase searches quite easily.
Renathe - your main problem just from looking at the above post is that you don't have necklace or earrings in the first three words of either listing.
This
http://www.etsy.com/listing/78906851/aquamarine-natural-rough-nugget-necklaceShould have the following words in this order of the title - aquamarine nugget necklace and so on.
This
http://www.etsy.com/listing/77186888/champagne-light-beige-feather-and-rawshould have moonstone feather earrings in the first three words - at the moment earrings isn't even in your url so no use on Google for example.
Take time to look at the words and phrases people use in their searches in stats - most are very simple one or two words. Those are the one or two words that need to be at the beginning of each listing and in your tags ie that word or that 2-3 word phrase.