Hi! If I'm not mistaken, the 585 mark on the silver jewelry is a hallmark. This kind of jewelry is not as common as jewelry with 925 or 900. I recently bought a star of david ring at https://www.bikerringshop.com/products/star-of-david-ring . This ring is made mostly of sterling silver. I have been wanting to get one for a long time, because I like all things that are generally associated with the star of david and the like. It is very well made and beautifully detailed.