Your prices are not too high. Your jewelry is lovely, photos are great and prices are more than "reasonable."
You did not ask about getting more views. I noticed that you are using a "backward" keyword technique that was invented on Etsy by an Etsy seller (my guess) that does not work very well and with some changes, your listings would get more views, especially from Google.
Just ask yourself: Where else on the Internet have you ever seen keyword phrasing like this; "necklace long black pearl?"